![Mona Lisa, by Leonardo da Vinci, from C2RMF retouched](https://upload.wikimedia.org/wikipedia/commons/e/ec/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF_retouched.jpg)
Oil painting is the process of
painting
Painting is the practice of applying paint, pigment, color or other medium to a solid surface (called the "matrix" or "support"). The medium is commonly applied to the base with a brush, but other implements, such as knives, sponges, and ...
with
pigments
A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally dyes are often organic compounds whereas pigments are often inorganic compoun ...
with a medium of
drying oil
A drying oil is an oil that hardens to a tough, solid film after a period of exposure to air, at room temperature. The oil hardens through a chemical reaction in which the components crosslink (and hence, polymerize) by the action of oxygen (no ...
as the
binder. It has been the most common technique for artistic painting on wood panel or canvas for several centuries, spreading from Europe to the rest of the world. The advantages of oil for painting images include "greater flexibility, richer and denser colour, the use of layers, and a wider range from light to dark". But the process is slower, especially when one layer of paint needs to be allowed to dry before another is applied.
The oldest known oil paintings were created by
Buddhist
Buddhism ( , ), also known as Buddha Dharma and Dharmavinaya (), is an Indian religion or philosophical tradition based on teachings attributed to the Buddha. It originated in northern India as a -movement in the 5th century BCE, and ...
artists in
Afghanistan
Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is bordere ...
and date back to the 7th century AD. The technique of binding pigments in oil was later brought to Europe in the 15th century, about 900 years later. The adoption of oil paint by Europeans began with
Early Netherlandish painting
Early Netherlandish painting, traditionally known as the Flemish Primitives, refers to the work of artists active in the Burgundian and Habsburg Netherlands during the 15th- and 16th-century Northern Renaissance period. It flourished especiall ...
in Northern Europe, and by the height of the
Renaissance
The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass ideas ...
, oil painting techniques had almost completely replaced the use of
tempera
Tempera (), also known as egg tempera, is a permanent, fast-drying painting medium consisting of colored pigments mixed with a water-soluble binder medium, usually glutinous material such as egg yolk. Tempera also refers to the paintings done ...
paints in the majority of Europe.
Oil paint
Oil paint is a type of slow-drying paint that consists of particles of pigment suspended in a drying oil, commonly linseed oil. The viscosity of the paint may be modified by the addition of a solvent such as turpentine or white spirit, and varn ...
was used by Europeans for painting statues and woodwork from at least the 12th century, but its common use for painted images began with
Early Netherlandish painting
Early Netherlandish painting, traditionally known as the Flemish Primitives, refers to the work of artists active in the Burgundian and Habsburg Netherlands during the 15th- and 16th-century Northern Renaissance period. It flourished especiall ...
in Northern Europe, and by the height of the
Renaissance
The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass ideas ...
, oil painting techniques had almost completely replaced the use of
egg tempera
Tempera (), also known as egg tempera, is a permanent, fast-drying painting medium consisting of colored pigments mixed with a water-soluble binder medium, usually glutinous material such as egg yolk. Tempera also refers to the paintings done ...
paints for
panel painting
A panel painting is a painting made on a flat panel of wood, either a single piece or a number of pieces joined together. Until canvas became the more popular support medium in the 16th century, panel painting was the normal method, when not paint ...
s in most of Europe, though not for Orthodox
icon
An icon () is a religious work of art, most commonly a painting, in the cultures of the Eastern Orthodox, Oriental Orthodox, and Catholic churches. They are not simply artworks; "an icon is a sacred image used in religious devotion". The most ...
s or wall paintings, where tempera and
fresco
Fresco (plural ''frescos'' or ''frescoes'') is a technique of mural painting executed upon freshly laid ("wet") lime plaster. Water is used as the vehicle for the dry-powder pigment to merge with the plaster, and with the setting of the plaste ...
, respectively, remained the usual choice.
Commonly used drying oils include
linseed oil
Linseed oil, also known as flaxseed oil or flax oil (in its edible form), is a colourless to yellowish oil obtained from the dried, ripened seeds of the flax plant (''Linum usitatissimum''). The oil is obtained by pressing, sometimes followed by ...
,
poppy seed oil
Poppyseed oil (also poppy seed oil and poppy oil) is an edible oil obtained from poppy seeds (specifically seeds of ''Papaver somniferum'', the opium poppy).
Poppy seeds yield 45–50% oil. Like poppy seeds, poppyseed oil is highly palatable, h ...
,
walnut oil
Walnut oil is oil extracted from walnuts, '' Juglans regia''. The oil contains polyunsaturated fatty acids, monounsaturated fatty acids, and saturated fats.
Composition
Walnut oil is composed largely of polyunsaturated fatty acids (72% of tota ...
, and
safflower oil
Safflower (''Carthamus tinctorius'') is a highly branched, herbaceous, thistle-like annual plant in the family Asteraceae. It is commercially cultivated for vegetable oil extracted from the seeds and was used by the early Spanish colonies along ...
. The choice of oil imparts a range of properties to the
paint
Paint is any pigmented liquid, liquefiable, or solid mastic composition that, after application to a substrate in a thin layer, converts to a solid film. It is most commonly used to protect, color, or provide texture. Paint can be made in many ...
, such as the amount of yellowing or drying time. The paint could be thinned with
turpentine
Turpentine (which is also called spirit of turpentine, oil of turpentine, terebenthene, terebinthine and (colloquially) turps) is a fluid obtained by the distillation of resin harvested from living trees, mainly pines. Mainly used as a special ...
. Certain differences, depending on the oil, are also visible in the
sheen
Sheen may refer to:
Places
* Sheen or West Sheen, an alternative name for Richmond, London, England
** East Sheen
** North Sheen
** Sheen Priory
* Sheen, Staffordshire, a village and civil parish in the Staffordshire Moorlands, England
* Sheenb ...
of the paints. An artist might use several different oils in the same painting depending on specific
pigment
A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally dyes are often organic compounds whereas pigments are often inorganic compo ...
s and effects desired. The paints themselves also develop a particular
consistency
In classical deductive logic, a consistent theory is one that does not lead to a logical contradiction. The lack of contradiction can be defined in either semantic or syntactic terms. The semantic definition states that a theory is consistent ...
depending on the medium. The oil may be boiled with a
resin
In polymer chemistry and materials science, resin is a solid or highly viscous substance of plant or synthetic origin that is typically convertible into polymers. Resins are usually mixtures of organic compounds. This article focuses on natu ...
, such as pine resin or
frankincense, to create a
varnish prized for its body and gloss. The paint itself can be molded into different
textures depending on its
plasticity.
Techniques
![Palette knives](https://upload.wikimedia.org/wikipedia/commons/2/29/Palette_knives.jpg)
Traditional oil painting techniques often begin with the artist sketching the subject onto the canvas with charcoal or thinned paint.
Oil paint
Oil paint is a type of slow-drying paint that consists of particles of pigment suspended in a drying oil, commonly linseed oil. The viscosity of the paint may be modified by the addition of a solvent such as turpentine or white spirit, and varn ...
is usually mixed with linseed oil, artist grade
mineral spirits
White spirit (AU, UK & Ireland)Primarily in the United Kingdom and Australia. In New Zealand "white spirit" can also refer to Coleman fuel (white gas). or mineral spirits (US, Canada), also known as mineral turpentine (AU/NZ), turpentine substitu ...
, or other
solvents to make the paint thinner, faster or slower-drying. (Because the solvents thin the oil in the paint, they can also be used to clean paint brushes.) A basic rule of oil paint application is '
fat over lean Fat over lean refers to the principle in oil painting of applying paint with a higher oil to pigment ratio ('fat') over paint with a lower oil to pigment ratio ('lean') to ensure a stable paint film, since it is believed that the paint with the high ...
', meaning that each additional layer of paint should contain more oil than the layer below to allow proper drying. If each additional layer contains less oil, the final painting will crack and peel. The consistency on the canvas depend on the layering of the oil paint. This rule does not ensure permanence; it is the quality and type of oil that leads to a strong and stable paint film.
There are other media that can be used with the oil, including cold wax, resins, and varnishes. These additional media can aid the painter in adjusting the translucency of the paint, the sheen of the paint, the density or 'body' of the paint, and the ability of the paint to hold or conceal the brushstroke. These aspects of the paint are closely related to the expressive capacity of oil paint.
Traditionally, paint was most often transferred to the painting surface using
paintbrush
A paintbrush is a brush used to apply paint or ink. A paintbrush is usually made by clamping bristles to a handle with a ferrule. They are available in various sizes, shapes, and materials. Thicker ones are used for filling in, and thinner one ...
es, but there are other methods, including using
palette knives and rags. Palette knives can scrape off any paint from a canvas and can also be used for application. Oil paint remains wet longer than many other types of artists' materials, enabling the artist to change the color, texture or form of the figure. At times, the painter might even remove an entire layer of paint and begin anew. This can be done with a rag and some
turpentine
Turpentine (which is also called spirit of turpentine, oil of turpentine, terebenthene, terebinthine and (colloquially) turps) is a fluid obtained by the distillation of resin harvested from living trees, mainly pines. Mainly used as a special ...
for a time while the paint is wet, but after a while the hardened layer must be scraped off. Oil paint dries by
oxidation
Redox (reduction–oxidation, , ) is a type of chemical reaction in which the oxidation states of substrate change. Oxidation is the loss of electrons or an increase in the oxidation state, while reduction is the gain of electrons or a d ...
, not
evaporation
Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase. High concentration of the evaporating substance in the surrounding gas significantly slows down evaporation, such as when humidi ...
, and is usually dry to the touch within a span of two weeks (some colors dry within days).
History
![Afghanistan oil Paintings](https://upload.wikimedia.org/wikipedia/commons/c/cf/Afghanistan_oil_Paintings.jpg)
The earliest known surviving oil paintings are Buddhist murals created circa 650AD in
Bamiyan,
Afghanistan
Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is bordere ...
. Bamiyan is an historic settlement along the
silk road
The Silk Road () was a network of Eurasian trade routes active from the second century BCE until the mid-15th century. Spanning over 6,400 kilometers (4,000 miles), it played a central role in facilitating economic, cultural, political, and reli ...
and is famous for the Bamiyan Buddhas, a series of giant statues, behind which rooms and tunnels are carved from the rock. The murals are located in these rooms. The artworks display a wide range of pigments and ingredients, and even included the use of a final varnish layer. The refinement of this painting technique and the survival of the paintings into the present day suggests that oil paints had been used in Asia for some time before the 7th century. This technique of binding pigments in oil, first seen in the Bamiyan cave paintings of South Asia, was later brought to Europe about 900 years later, in the 15th century. Europeans adopted the technique with Early Netherlandish painting in Northern Europe, and later, during the Renaissance, oil painting techniques had almost completely replaced the earlier use of tempera paints in the majority of Europe.
Most
European Renaissance
The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass ideas ...
sources, in particular
Vasari
Giorgio Vasari (, also , ; 30 July 1511 – 27 June 1574) was an Italian Renaissance Master, who worked as a painter, architect, engineer, writer, and historian, who is best known for his work ''The Lives of the Most Excellent Painters, Sculpt ...
, falsely credit northern European painters of the 15th century, and
Jan van Eyck in particular, with the invention of oil paints However,
Theophilus
Theophilus is a male given name with a range of alternative spellings. Its origin is the Greek word Θεόφιλος from θεός (God) and φιλία (love or affection) can be translated as "Love of God" or "Friend of God", i.e., it is a theoph ...
(
Roger of Helmarshausen?) clearly gives instructions for oil-based painting in his treatise, ''On Various Arts'', written about 1125. At this period, it was probably used for painting sculptures, carvings and wood fittings, perhaps especially for outdoor use. Outdoor surfaces and surfaces like shields—both those used in tournaments and those hung as decorations—were more durable when painted in oil-based media than when painted in the traditional tempera paints. However,
early Netherlandish painting
Early Netherlandish painting, traditionally known as the Flemish Primitives, refers to the work of artists active in the Burgundian and Habsburg Netherlands during the 15th- and 16th-century Northern Renaissance period. It flourished especiall ...
with artists like
Van Eyck Van Eyck or Van Eijk () is a Dutch toponymic surname. ''Eijck'', ''Eyck'', ''Eyk'' and ''Eijk'' are all archaic spellings of modern Dutch ("oak") and the surname literally translates as "from/of oak". However, in most cases, the family name refers ...
and
Robert Campin
Robert Campin (c. 1375 – 26 April 1444), now usually identified with the Master of Flémalle (earlier the Master of the Merode Triptych, before the discovery of three other similar panels), was the first great master of Early Netherlandish paint ...
in the early and mid-15th century were the first to make oil the usual painting medium, and explore the use of layers and
glazes, followed by the rest of Northern Europe, and only then Italy.
Such works were painted on
wooden panels, but towards the end of the 15th century
canvas
Canvas is an extremely durable plain-woven fabric used for making sails, tents, marquees, backpacks, shelters, as a support for oil painting and for other items for which sturdiness is required, as well as in such fashion objects as handbags ...
began to be used as a support, as it was cheaper, easier to transport, allowed larger works, and did not require complicated preliminary layers of
gesso
Gesso (; "chalk", from the la, gypsum, from el, γύψος) is a white paint mixture consisting of a binder mixed with chalk, gypsum, pigment, or any combination of these. It is used in painting as a preparation for any number of substrates suc ...
(a fine type of plaster).
Venice
Venice ( ; it, Venezia ; vec, Venesia or ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 small islands that are separated by canals and linked by over 400 ...
, where sail-canvas was easily available, was a leader in the move to canvas. Small
cabinet painting
A cabinet painting (or "cabinet picture") is a small painting, typically no larger than two feet (0.6 meters) in either dimension, but often much smaller. The term is especially used for paintings that show full-length figures or landscapes at a s ...
s were also made on metal, especially copper plates. These supports were more expensive but very firm, allowing intricately fine detail. Often printing plates from
printmaking
Printmaking is the process of creating artworks by printing, normally on paper, but also on fabric, wood, metal, and other surfaces. "Traditional printmaking" normally covers only the process of creating prints using a hand processed techniq ...
were reused for this purpose. The increasing use of oil spread through Italy from Northern Europe, starting in Venice in the late 15th century. By 1540, the previous method for painting on panel (tempera) had become all but extinct, although Italians continued to use chalk-based
fresco
Fresco (plural ''frescos'' or ''frescoes'') is a technique of mural painting executed upon freshly laid ("wet") lime plaster. Water is used as the vehicle for the dry-powder pigment to merge with the plaster, and with the setting of the plaste ...
for wall paintings, which was less successful and durable in damper northern climates.
Renaissance techniques used a number of thin almost transparent layers or
glazes, usually each allowed to dry before the next was added, greatly increasing the time a painting took. The
underpainting
In art, an underpainting is an initial layer of paint applied to a ground, which serves as a base for subsequent layers of paint. Underpaintings are often monochromatic and help to define color values for later painting. Underpainting gets its name ...
or ground beneath these was usually white (typically gesso coated with a primer), allowing light to reflect back through the layers. But van Eyck, and Robert Campin a little later, used a
wet-on-wet
Wet-on-wet, or ''alla prima'' (Italian, meaning ''at first attempt''), direct painting or au premier coup, is a painting technique in which layers of wet paint are applied to previously administered layers of wet paint. Used mostly in oil paint ...
technique in places, painting a second layer soon after the first. Initially the aim was, as with the established techniques of
tempera
Tempera (), also known as egg tempera, is a permanent, fast-drying painting medium consisting of colored pigments mixed with a water-soluble binder medium, usually glutinous material such as egg yolk. Tempera also refers to the paintings done ...
and
fresco
Fresco (plural ''frescos'' or ''frescoes'') is a technique of mural painting executed upon freshly laid ("wet") lime plaster. Water is used as the vehicle for the dry-powder pigment to merge with the plaster, and with the setting of the plaste ...
, to produce a smooth surface when no attention was drawn to the brushstrokes or texture of the painted surface. Among the earliest
impasto
''Impasto'' is a technique used in painting, where paint is laid on an area of the surface thickly, usually thick enough that the brush or painting-knife strokes are visible. Paint can also be mixed right on the canvas. When dry, impasto provide ...
effects, using a raised or rough texture in the surface of the paint, are those from the later works of the
Venetian painter
Venetian painting was a major force in Italian Renaissance painting and beyond. Beginning with the work of Giovanni Bellini (c. 1430–1516) and his brother Gentile Bellini (c. 1429–1507) and their workshops, the major artists of the Venetian ...
Giovanni Bellini, around 1500.
This became much more common in the 16th century, as may painters began to draw attention to the process of their painting, by leaving individual brushstrokes obvious, and a rough painted surface. Another Venetian,
Titian
Tiziano Vecelli or Vecellio (; 27 August 1576), known in English as Titian ( ), was an Italians, Italian (Republic of Venice, Venetian) painter of the Renaissance, considered the most important member of the 16th-century Venetian school (art), ...
, was a leader in this. In the 17th century some artists, including
Rembrandt
Rembrandt Harmenszoon van Rijn (, ; 15 July 1606 – 4 October 1669), usually simply known as Rembrandt, was a Dutch Golden Age painter, printmaker and draughtsman. An innovative and prolific master in three media, he is generally consid ...
, began to use dark grounds. Until the mid-19th century there was a division between artists who exploited "effects of handling" in their paintwork, and those who continued to aim at "an even, glassy surface from which all evidences of manipulation had been banished".
Before the 19th century, artists or their apprentices ground pigments and mixed their paints for the range of
painting media. This made portability difficult and kept most painting activities confined to the
studio. This changed when tubes of oil paint became widely available following the American portrait painter
John Goffe Rand
John Goffe Rand (27 January 1801–23 January 1873) was an American painter and inventor. He lived and worked in Boston, London, and New York. Rand invented and patented the first collapsible artist's paint Tube (container), tube.
The tin tube a ...
's invention of the squeezable or collapsible metal tube in 1841. Artists could mix colors quickly and easily, which enabled, for the first time, relatively convenient
plein air
''En plein air'' (; French for 'outdoors'), or ''plein air'' painting, is the act of painting outdoors.
This method contrasts with studio painting or academic rules that might create a predetermined look. The theory of 'En plein air' painting ...
painting (a common approach in French
Impressionism
Impressionism was a 19th-century art movement characterized by relatively small, thin, yet visible brush strokes, open Composition (visual arts), composition, emphasis on accurate depiction of light in its changing qualities (often accentuating ...
)
Ingredients
![Flax seeds](https://upload.wikimedia.org/wikipedia/commons/1/15/Flax_seeds.jpg)
The
linseed oil
Linseed oil, also known as flaxseed oil or flax oil (in its edible form), is a colourless to yellowish oil obtained from the dried, ripened seeds of the flax plant (''Linum usitatissimum''). The oil is obtained by pressing, sometimes followed by ...
itself comes from the
flax
Flax, also known as common flax or linseed, is a flowering plant, ''Linum usitatissimum'', in the family Linaceae. It is cultivated as a food and fiber crop in regions of the world with temperate climates. Textiles made from flax are known in ...
seed, a common
fiber crop.
Linen
Linen () is a textile made from the fibers of the flax plant.
Linen is very strong, absorbent, and dries faster than cotton. Because of these properties, linen is comfortable to wear in hot weather and is valued for use in garments. It also ...
, a "support" for oil painting (see relevant section), also comes from the flax plant.
Safflower
Safflower (''Carthamus tinctorius'') is a highly branched, herbaceous, thistle-like annual plant in the family Asteraceae. It is commercially cultivated for vegetable oil extracted from the seeds and was used by the early Spanish colonies along ...
oil or the
walnut
A walnut is the edible seed of a drupe of any tree of the genus ''Juglans'' (family Juglandaceae), particularly the Persian or English walnut, '' Juglans regia''.
Although culinarily considered a "nut" and used as such, it is not a true ...
or
poppyseed oil
Poppyseed oil (also poppy seed oil and poppy oil) is an edible oil obtained from poppy seeds (specifically seeds of ''Papaver somniferum'', the opium poppy).
Poppy seeds yield 45–50% oil. Like poppy seeds, poppyseed oil is highly palatable, ...
are sometimes used in formulating lighter colors like white because they "yellow" less on drying than linseed oil, but they have the slight drawback of drying more slowly and may not provide the strongest paint film. Linseed oil tends to dry yellow and can change the hue of the color.
Recent advances in
chemistry
Chemistry is the science, scientific study of the properties and behavior of matter. It is a natural science that covers the Chemical element, elements that make up matter to the chemical compound, compounds made of atoms, molecules and ions ...
have produced modern
water miscible oil paints that can be used and cleaned up with water. Small alterations in the
molecular structure of the oil creates this water
miscible
Miscibility () is the property of two substances to mix in all proportions (that is, to fully dissolve in each other at any concentration), forming a homogeneous mixture (a solution). The term is most often applied to liquids but also applies ...
property.
Supports for oil painting
The earliest oil paintings were almost all
panel painting
A panel painting is a painting made on a flat panel of wood, either a single piece or a number of pieces joined together. Until canvas became the more popular support medium in the 16th century, panel painting was the normal method, when not paint ...
s on wood, which had been
seasoned
Seasoning is the process of supplementing food via herbs, spices, salts, and/or sugar, intended to enhance a particular flavour.
General meaning
Seasonings include herbs and spices, which are themselves frequently referred to as "seasonings". H ...
and prepared in a complicated and rather expensive process with the panel constructed from several pieces of wood, although such a support has a tendency to warp. Panels continued to be used well into the 17th century, including by
Rubens, who painted several large works on wood. The artists of the Italian regions moved towards
canvas
Canvas is an extremely durable plain-woven fabric used for making sails, tents, marquees, backpacks, shelters, as a support for oil painting and for other items for which sturdiness is required, as well as in such fashion objects as handbags ...
in the early 16th century, led partly by a wish to paint larger images, which would have been too heavy as panels. Canvas for sails was made in
Venice
Venice ( ; it, Venezia ; vec, Venesia or ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 small islands that are separated by canals and linked by over 400 ...
and so easily available and cheaper than wood.
Smaller paintings, with very fine detail, were easier to paint on a very firm surface, and wood panels or copper plates, often reused from
printmaking
Printmaking is the process of creating artworks by printing, normally on paper, but also on fabric, wood, metal, and other surfaces. "Traditional printmaking" normally covers only the process of creating prints using a hand processed techniq ...
, were often chosen for small
cabinet painting
A cabinet painting (or "cabinet picture") is a small painting, typically no larger than two feet (0.6 meters) in either dimension, but often much smaller. The term is especially used for paintings that show full-length figures or landscapes at a s ...
s even in the 19th century.
Portrait miniature
A portrait miniature is a miniature portrait painting, usually executed in gouache, watercolor, or enamel. Portrait miniatures developed out of the techniques of the miniatures in illuminated manuscripts, and were popular among 16th-century eli ...
s normally used very firm supports, including
ivory
Ivory is a hard, white material from the tusks (traditionally from elephants) and teeth of animals, that consists mainly of dentine, one of the physical structures of teeth and tusks. The chemical structure of the teeth and tusks of mammals is ...
, or stiff paper card.
Traditional artists' canvas is made from
linen
Linen () is a textile made from the fibers of the flax plant.
Linen is very strong, absorbent, and dries faster than cotton. Because of these properties, linen is comfortable to wear in hot weather and is valued for use in garments. It also ...
, but less expensive
cotton
Cotton is a soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of the cotton plants of the genus ''Gossypium'' in the mallow family Malvaceae. The fiber is almost pure cellulose, and can contain minor perce ...
fabric has been used. The artist first prepares a wooden frame called a "stretcher" or "strainer". The difference between the two names is that ''stretchers'' are slightly adjustable, while ''strainers'' are rigid and lack adjustable corner notches. The canvas is then pulled across the wooden frame and tacked or stapled tightly to the back edge. Then the artist applies a "
size
Size in general is the Magnitude (mathematics), magnitude or dimensions of a thing. More specifically, ''geometrical size'' (or ''spatial size'') can refer to linear dimensions (length, width, height, diameter, perimeter), area, or volume ...
" to isolate the canvas from the acidic qualities of the paint. Traditionally, the canvas was coated with a layer of
animal glue
Animal glue is an adhesive that is created by prolonged boiling of animal connective tissue in a process called rendering. In addition to being used as an adhesive it is used for coating and sizing, in decorative composition ornaments, and as a ...
(modern painters will use rabbit skin glue) as the size and primed with lead white paint, sometimes with added chalk. Panels were prepared with a ''gesso'', a mixture of glue and chalk.
Modern acrylic "
gesso
Gesso (; "chalk", from the la, gypsum, from el, γύψος) is a white paint mixture consisting of a binder mixed with chalk, gypsum, pigment, or any combination of these. It is used in painting as a preparation for any number of substrates suc ...
" is made of
titanium dioxide
Titanium dioxide, also known as titanium(IV) oxide or titania , is the inorganic compound with the chemical formula . When used as a pigment, it is called titanium white, Pigment White 6 (PW6), or CI 77891. It is a white solid that is insolubl ...
with an acrylic binder. It is frequently used on canvas, whereas real gesso is not suitable for canvas. The artist might apply several layers of gesso, sanding each smooth after it has dried. Acrylic gesso is very difficult to sand. One manufacturer makes a "sandable" acrylic gesso, but it is intended for panels only and not canvas. It is possible to make the gesso a particular color, but most store-bought gesso is white. The gesso layer, depending on its thickness, will tend to draw the oil paint into the porous surface. Excessive or uneven gesso layers are sometimes visible in the surface of finished paintings as a change that's not from the paint.
Standard sizes for oil paintings were set in France in the 19th century. The standards were used by most artists, not only the French, as it was—and evidently still is—supported by the main suppliers of artists' materials. Size 0 (''toile de 0'') to size 120 (''toile de 120'') is divided in separate "runs" for figures (''figure''), landscapes (''paysage'') and marines (''marine'') that more or less preserve the diagonal. Thus a ''0 figure'' corresponds in height with a ''paysage 1'' and a ''marine 2''.
Although surfaces like
linoleum
Linoleum, sometimes shortened to lino, is a floor covering made from materials such as solidified linseed oil (linoxyn), Pine Resin, pine resin, ground Cork (material), cork dust, sawdust, and mineral fillers such as calcium carbonate, most com ...
,
wooden panel,
paper
Paper is a thin sheet material produced by mechanically or chemically processing cellulose fibres derived from wood, rags, grasses or other vegetable sources in water, draining the water through fine mesh leaving the fibre evenly distributed ...
,
slate
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. It is the finest grained foliated metamorphic rock. ...
,
pressed wood
Pressed wood, also known as presswood, is any engineered wood building and furniture construction material made from wood veneers, wood shavings and particles, sawdust or wood fibers bonded together with an adhesive under heat and pressure.
See ...
,
Masonite
Masonite is a type of hardboard, a kind of engineered wood, which is made of steam-cooked and pressure-molded wood fibers in a process patented by William H. Mason. It is also called Quartrboard, Isorel, hernit, karlit, torex, treetex, and ...
, and
cardboard
Cardboard is a generic term for heavy paper-based products. The construction can range from a thick paper known as paperboard to corrugated fiberboard which is made of multiple plies of material. Natural cardboards can range from grey to light ...
have been used, the most popular surface since the 16th century has been
canvas
Canvas is an extremely durable plain-woven fabric used for making sails, tents, marquees, backpacks, shelters, as a support for oil painting and for other items for which sturdiness is required, as well as in such fashion objects as handbags ...
, although many artists used panel through the 17th century and beyond. Panel is more expensive, heavier, harder to transport, and prone to warp or split in poor conditions. For fine detail, however, the absolute solidity of a wooden panel has an advantage.
Process
Oil paint is made by mixing
pigment
A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally dyes are often organic compounds whereas pigments are often inorganic compo ...
s of colors with an oil medium. Since the 19th century the different main colors are purchased in
paint tube
Oil paint is a type of slow-drying paint that consists of particles of pigment suspended in a drying oil, commonly linseed oil. The viscosity of the paint may be modified by the addition of a solvent such as turpentine or white spirit, and va ...
s pre-prepared before painting begins, further shades of color are usually obtained by mixing small quantities together as the painting process is underway. An
artist's palette
A palette , in the original sense of the word, is a rigid, flat surface on which a painter arranges and mixes paints. A palette is usually made of wood, plastic, ceramic, or other hard, inert, nonporous material, and can vary greatly in size and ...
, traditionally a thin wood board held in the hand, is used for holding and mixing paints. Pigments may be any number of natural or synthetic substances with color, such as
sulphides for yellow or cobalt salts for blue. Traditional pigments were based on minerals or plants, but many have proven unstable over long periods of time. Modern pigments often use synthetic chemicals. The pigment is mixed with oil, usually linseed, but other oils may be used. The various oils dry differently, which creates assorted effects.
A
brush
A brush is a common tool with bristles, wire or other filaments. It generally consists of a handle or block to which filaments are affixed in either a parallel or perpendicular orientation, depending on the way the brush is to be gripped durin ...
is most commonly employed by the artist to apply the paint, often over a sketched outline of their subject (which could be in another medium). Brushes are made from a variety of fibers to create different effects. For example, brushes made with hog bristle might be used for bolder strokes and impasto textures. Fitch hair and
mongoose
A mongoose is a small terrestrial carnivorous mammal belonging to the family Herpestidae. This family is currently split into two subfamilies, the Herpestinae and the Mungotinae. The Herpestinae comprises 23 living species that are native to so ...
hair brushes are fine and smooth, and thus answer well for portraits and detail work. Even more expensive are red
sable brushes (
weasel
Weasels are mammals of the genus ''Mustela'' of the family Mustelidae. The genus ''Mustela'' includes the least weasels, polecats, stoats, ferrets and European mink. Members of this genus are small, active predators, with long and slender bo ...
hair). The finest quality brushes are called "
kolinsky sable"; these brush fibers are taken from the tail of the
Siberian weasel
The Siberian weasel or kolonok (''Mustela sibirica''), is a medium-sized weasel native to Asia, where it is widely distributed and inhabits various forest habitats and open areas. It is therefore listed as Least Concern on the IUCN Red List.
Desc ...
. This hair keeps a superfine point, has smooth handling, and good memory (it returns to its original point when lifted off the canvas), known to artists as a brush's "snap". Floppy fibers with no snap, such as
squirrel hair, are generally not used by oil painters.
In the past few decades, many synthetic brushes have been marketed. These are very durable and can be quite good, as well as
cost efficient
Cost efficiency (or cost optimality), in the context of parallel computer algorithms, refers to a measure of how effectively parallel computing can be used to solve a particular problem. A parallel algorithm is considered cost efficient if its asy ...
.
Brushes come in multiple sizes and are used for different purposes. The ''type'' of brush also makes a difference. For example, a "round" is a pointed brush used for detail work. "Flat" brushes are used to apply broad swaths of color. "Bright" is a flat brush with shorter brush hairs, used for "scrubbing in". "Filbert" is a flat brush with rounded corners. "Egbert" is a very long, and rare, filbert brush. The artist might also apply paint with a palette knife, which is a flat metal blade. A palette knife may also be used to remove paint from the canvas when necessary. A variety of unconventional tools, such as rags, sponges, and cotton swabs, may be used to apply or remove paint. Some artists even paint with their
fingers
A finger is a limb of the body and a type of digit, an organ of manipulation and sensation found in the hands of most of the Tetrapods, so also with humans and other primates. Most land vertebrates have five fingers (Pentadactyly). Chambers 1 ...
.
![Tubes of paint, artist's paint PNG](https://upload.wikimedia.org/wikipedia/commons/b/b2/Tubes_of_paint%2C_artist%27s_paint_PNG.png)
Old masters usually applied paint in thin layers known as "glazes" that allow light to penetrate completely through the layer, a method also simply called "indirect painting". This technique is what gives oil paintings their luminous characteristics. This method was first perfected through an adaptation of the
egg tempera
Tempera (), also known as egg tempera, is a permanent, fast-drying painting medium consisting of colored pigments mixed with a water-soluble binder medium, usually glutinous material such as egg yolk. Tempera also refers to the paintings done ...
painting technique (egg yolks used as a binder, mixed with pigment), and was applied by the
Early Netherlandish painter
Early Netherlandish painting, traditionally known as the Flemish Primitives, refers to the work of artists active in the Burgundian Netherlands, Burgundian and Habsburg Netherlands during the 15th- and 16th-century Northern Renaissance period. ...
s in Northern Europe with pigments usually ground in
linseed oil
Linseed oil, also known as flaxseed oil or flax oil (in its edible form), is a colourless to yellowish oil obtained from the dried, ripened seeds of the flax plant (''Linum usitatissimum''). The oil is obtained by pressing, sometimes followed by ...
. This approach has been called the "mixed technique" or "mixed method" in modern times. The first coat (the
underpainting
In art, an underpainting is an initial layer of paint applied to a ground, which serves as a base for subsequent layers of paint. Underpaintings are often monochromatic and help to define color values for later painting. Underpainting gets its name ...
) is laid down, often painted with egg tempera or turpentine-thinned paint. This layer helps to "tone" the canvas and to cover the white of the gesso. Many artists use this layer to sketch out the composition. This first layer can be adjusted before proceeding further, an advantage over the "cartooning" method used in
fresco
Fresco (plural ''frescos'' or ''frescoes'') is a technique of mural painting executed upon freshly laid ("wet") lime plaster. Water is used as the vehicle for the dry-powder pigment to merge with the plaster, and with the setting of the plaste ...
technique. After this layer dries, the artist might then proceed by painting a "mosaic" of color swatches, working from darkest to lightest. The borders of the colors are blended together when the "mosaic" is completed and then left to dry before applying details.
Artists in later periods, such as the
Impressionist
Impressionism was a 19th-century art movement characterized by relatively small, thin, yet visible brush strokes, open composition, emphasis on accurate depiction of light in its changing qualities (often accentuating the effects of the passage ...
era (late 19th century), often expanded on this
wet-on-wet
Wet-on-wet, or ''alla prima'' (Italian, meaning ''at first attempt''), direct painting or au premier coup, is a painting technique in which layers of wet paint are applied to previously administered layers of wet paint. Used mostly in oil paint ...
method, blending the wet paint on the canvas without following the Renaissance-era approach of layering and glazing. This method is also called "
alla prima
Wet-on-wet, or ''alla prima'' (Italian, meaning ''at first attempt''), direct painting or au premier coup, is a painting technique in which layers of wet paint are applied to previously administered layers of wet paint. Used mostly in oil paint ...
". This method was created due to the advent of painting outdoors, instead of inside a studio, because while outside, an artist did not have the time to let each layer of paint dry before adding a new layer. Several contemporary artists use a combination of both techniques to add bold color (wet-on-wet) and obtain the depth of layers through glazing.
When the image is finished and has dried for up to a year, an artist often seals the work with a layer of varnish that is typically made from
dammar gum
Dammar, also called dammar gum, or damar gum, is a resin obtained from the tree family Dipterocarpaceae in India and Southeast Asia, principally those of the genera '' Shorea'' or '' Hopea'' (synonym ''Balanocarpus''). The resin of some species ...
crystals dissolved in turpentine. Such varnishes can be removed without disturbing the oil painting itself, to enable cleaning and
conservation
Conservation is the preservation or efficient use of resources, or the conservation of various quantities under physical laws.
Conservation may also refer to:
Environment and natural resources
* Nature conservation, the protection and managem ...
. Some contemporary artists decide not to varnish their work, preferring the surface unvarnished.
Examples of famous works
File:Van Eyck - Arnolfini Portrait.jpg, '' Arnolfini Portrait'', Jan van Eyck, ''1434'' (on panel)
File:La donna velata v2.jpg, '' La donna velata'', Raphael
Raffaello Sanzio da Urbino, better known as Raphael (; or ; March 28 or April 6, 1483April 6, 1520), was an Italian painter and architect of the High Renaissance. List of works by Raphael, His work is admired for its clarity of form, ease of ...
, ''1516''
File:Tizian 085.jpg, '' The Rape of Europa'', Titian
Tiziano Vecelli or Vecellio (; 27 August 1576), known in English as Titian ( ), was an Italians, Italian (Republic of Venice, Venetian) painter of the Renaissance, considered the most important member of the 16th-century Venetian school (art), ...
, ''1562''
File:Peter Paul Rubens - De kruisoprichting.JPG, ''The Raising of the Cross
The raising of the Cross or elevation of the Cross has been a distinct subject in the Life of Christ in art depicting the start of the Crucifixion of Jesus. '', Peter Paul Rubens
Sir Peter Paul Rubens (; ; 28 June 1577 – 30 May 1640) was a Flemish artist and diplomat from the Duchy of Brabant in the Southern Netherlands (modern-day Belgium). He is considered the most influential artist of the Flemish Baroque traditio ...
, ''1610–11''
File:Rembrandt - The Anatomy Lesson of Dr Nicolaes Tulp.jpg, ''The Anatomy Lesson of Dr. Nicolaes Tulp
''The Anatomy Lesson of Dr. Nicolaes Tulp'' is a 1632 oil painting on canvas by Rembrandt housed in the Mauritshuis museum in The Hague, the Netherlands. The painting is regarded as one of Rembrandt's early masterpieces.
In the work, Nicolaes Tu ...
'', Rembrandt
Rembrandt Harmenszoon van Rijn (, ; 15 July 1606 – 4 October 1669), usually simply known as Rembrandt, was a Dutch Golden Age painter, printmaker and draughtsman. An innovative and prolific master in three media, he is generally consid ...
, ''1632''
File:Innocent-x-velazquez.jpg, ''Innocent X
Pope Innocent X ( la, Innocentius X; it, Innocenzo X; 6 May 1574 – 7 January 1655), born Giovanni Battista Pamphilj (or Pamphili), was head of the Catholic Church and ruler of the Papal States from 15 September 1644 to his death in January ...
'', Velázquez, ''c 1650''
File:Johannes Vermeer - Het melkmeisje - Google Art Project.jpg, '' The Milkmaid'', Johannes Vermeer
Johannes Vermeer ( , , #Pronunciation of name, see below; also known as Jan Vermeer; October 1632 – 15 December 1675) was a Dutch Baroque Period Painting, painter who specialized in domestic interior scenes of middle class, middle-class life. ...
, ''1658–1660''
File:Largillierre belle Strasbourgeoise mba mb.jpg, ''La Belle Strasbourgeoise
''La Belle Strasbourgeoise'' (''The Beautiful Strasbourg Woman'') is a 1703 painting by the French painter Nicolas de Largillière. It is now in the Musée des Beaux-Arts of Strasbourg, France. Its inventory number is 2146.
Description and hist ...
'', Nicolas de Largillière
Nicolas de Largillière (; 10 October 1656 – 20 March 1746) was a French portrait painter, born in Paris.
Biography
Early life
Largillière's father, a merchant, took him to Antwerp at the age of three. As a boy, he spent nearly two years i ...
, ''1703''
File:The Toilet of Venus, by François Boucher.jpg, ''The Toilet of Venus'', François Boucher, ''1751''
File:The Blue Boy.jpg, ''The Blue Boy
''The'' () is a grammatical article in English, denoting persons or things already mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the m ...
'', Thomas Gainsborough, ''1770''
File:Battle of Somosierra by Piotr Michałowski.PNG, ''Battle of Somosierra
The Battle of Somosierra took place on 30 November 1808, during the Peninsular War, when a combined Franco-Spanish- Polish force under the direct command of Napoleon Bonaparte forced a passage through a Spanish Divison stationed at the Si ...
'', Piotr Michałowski
Piotr Michałowski (July 2, 1800 – June 9, 1855) was a Polish painter of the Romantic period, especially known for his many portraits, and oil studies of horses. Broadly educated, he was also a social activist, legal advocate, city administr ...
, 1837
File:Claude Monet - Woman with a Parasol - Madame Monet and Her Son - Google Art Project.jpg, ''Woman with a Parasol – Madame Monet and Her Son
''Woman with a Parasol – Madame Monet and Her Son'', sometimes known as ''The Stroll'' (French: ''La Promenade'') is an oil-on-canvas painting by Claude Monet from 1875. The Impressionist work depicts his wife Camille Monet and their son Jean M ...
, Claude Monet
Oscar-Claude Monet (, , ; 14 November 1840 – 5 December 1926) was a French painter and founder of impressionist painting who is seen as a key precursor to modernism, especially in his attempts to paint nature as he perceived it. During ...
, ''1875''
File:Pierre-Auguste Renoir, Le Moulin de la Galette.jpg, ''Bal du moulin de la Galette
''Bal du moulin de la Galette'' (commonly known as ''Dance at Le moulin de la Galette'') is an 1876 painting by French artist Pierre-Auguste Renoir. It is housed at the Musée d'Orsay in Paris and is one of Impressionism's most celebrated masterpi ...
'', Pierre-Auguste Renoir
Pierre-Auguste Renoir (; 25 February 1841 – 3 December 1919) was a French artist who was a leading painter in the development of the Impressionist style. As a celebrator of beauty and especially feminine sensuality, it has been said that "R ...
''1876''
File:Portrait of Dr. Gachet.jpg, ''Portrait of Dr. Gachet
''Portrait of Dr. Gachet'' is one of the most revered paintings by the Dutch artist Vincent van Gogh. It depicts Dr. Paul Gachet, a homeopathic doctor and artist with whom van Gogh resided following a spell in an asylum at Saint-Rémy-de-Prove ...
'', Vincent van Gogh
Vincent Willem van Gogh (; 30 March 185329 July 1890) was a Dutch Post-Impressionism, Post-Impressionist painter who posthumously became one of the most famous and influential figures in Western art history. In a decade, he created about 2 ...
, ''1890''
File:Paul Cézanne, 1892-95, Les joueurs de carte (The Card Players), 60 x 73 cm, oil on canvas, Courtauld Institute of Art, London.jpg, ''The Card Players
''The Card Players'' is a series of oil paintings by the French Post-Impressionist artist Paul Cézanne. Painted during Cézanne's final period in the early 1890s, there are five paintings in the series. The versions vary in size, the number of ...
'', Paul Cézanne
Paul Cézanne ( , , ; ; 19 January 1839 – 22 October 1906) was a French artist and Post-Impressionism, Post-Impressionist painter whose work laid the foundations of the transition from the 19th-century conception of artistic endeavour to a ...
, ''1892''
File:Old guitarist chicago.jpg, ''The Old Guitarist
''The Old Guitarist'' is an oil painting by Pablo Picasso, which he created in late 1903 and early 1904. It depicts an elderly musician, a haggard man with threadbare clothing, who is hunched over his guitar while playing in the streets of Barc ...
'', Pablo Picasso
Pablo Ruiz Picasso (25 October 1881 – 8 April 1973) was a Spanish painter, sculptor, printmaker, ceramicist and Scenic design, theatre designer who spent most of his adult life in France. One of the most influential artists of the 20th ce ...
, 1903
File:Henri Le Sidaner Le Grand Canal, Venise (1906).jpg, ''Le Grand Canal'', ''Venice'', Henri Le Sidaner
Henri Eugène Augustin Le Sidaner (7 August 1862 – 14 July 1939) who was a contemporary of the Post-impressionists, was an intimist painter known for his paintings of domestic interiors and quiet street scenes. His style contained elements o ...
, 1906
File:Les Demoiselles d'Avignon.jpg, ''Les Demoiselles d'Avignon
''Les Demoiselles d'Avignon'' (''The Young Ladies of Avignon'', originally titled ''The Brothel of Avignon'') is a large oil painting created in 1907 by the Spanish artist Pablo Picasso. The work, part of the permanent collection of the Museum o ...
'', Pablo Picasso
Pablo Ruiz Picasso (25 October 1881 – 8 April 1973) was a Spanish painter, sculptor, printmaker, ceramicist and Scenic design, theatre designer who spent most of his adult life in France. One of the most influential artists of the 20th ce ...
, 1907
File:The Kiss - Gustav Klimt - Google Cultural Institute.jpg, '' The Kiss (Der Kuß)'', Gustav Klimt
Gustav Klimt (July 14, 1862 – February 6, 1918) was an Austrian symbolist painter and one of the most prominent members of the Vienna Secession movement. Klimt is noted for his paintings, murals, sketches, and other objets d'art. Klimt's prim ...
, 1907/8
File:Vassily Kandinsky, 1913 - Composition 7.jpg, ''Composition VII'', Wassily Kandinsky
Wassily Wassilyevich Kandinsky (; rus, Василий Васильевич Кандинский, Vasiliy Vasilyevich Kandinskiy, vɐˈsʲilʲɪj vɐˈsʲilʲjɪvʲɪtɕ kɐnʲˈdʲinskʲɪj; – 13 December 1944) was a Russian painter a ...
, ''1913''
File:Chagall Bella.jpg, ''Bella with White Collar
''Bella with White Collar (Bella au col blanc)'' is a painting done by Belarusian-French artist Marc Chagall in 1917. It is a portrait of Bella Rosenfeld Chagall, Chagall's wife at the time. The two tiny figures at the bottom are thought to repre ...
'', Marc Chagall, ''1917''
File:Villem Ormisson, Tartu vaade (1937).jpg, ''Motive from Tartu'', Villem Ormisson, ''1937''
File:Nighthawks by Edward Hopper 1942.jpg, '' Nighthawks'', Edward Hopper
Edward Hopper (July 22, 1882 – May 15, 1967) was an American realist painter and printmaker. While he is widely known for his oil paintings, he was equally proficient as a watercolorist and printmaker in etching.
Hopper created subdued drama ...
, 1942
Notes
References
* Borchert, Till-Holger. ''Van Eyck''. London:
Taschen
Taschen is a luxury art book publisher founded in 1980 by Benedikt Taschen in Cologne, Germany. As of January 2017, Taschen is co-managed by Benedikt and his eldest daughter, Marlene Taschen.
History
The company began as Taschen Comics, pu ...
, 2008.
*Osborne, Harold (ed), ''The Oxford Companion to Art'', 1970, OUP,
Further reading
* Chieffo, Clifford T.:Contemporary Oil Painter's Handbook, Prentice Hall, 1976
* ''
The Artist's Handbook of Materials and Techniques
''The Artist's Handbook of Materials and Techniques'' is a reference book by Ralph Mayer (1895–1979). Intended by the author for use by professional artists, it deals mostly with the chemical and physical properties of traditional painterly mater ...
'', comprehensive reference book by Ralph Mayer (1940)
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