Stand oil is heat treated and polymerized (thickened) oil. This heat-bodied oil is made from well-refined linseed oil from American flax seeds that is cooked in closed kettles to make a bodied oil of medium acid range. The color is better than oils obtained by conventional open-kettle cooking, yet darker than vacuum-bodied oils.
The term "stand oil" derived from the Dutch word that designated drying oil that had been heat treated and aged by standing. Later it applied to oils that were bodied by heat treated for prolonged periods in open kettles. Stand oil, invented in the 19th century, replaced Venice turpentine and sun-thickened linseed oil in painting mediums. Stand oil leaves an enamel-like finish to paint. Bodied oils form harder films than refined or raw linseed oils. The use of the term "stand oil" is antiquated since bodied oils today are processed differently than those in the 19th century.
Adding large amounts of stand oil or bodied oil increases the tendency of oil paintings to wrinkle (alligator). Adding 10% by volume of bodied oil to alkyd painting mediums increases the viscosity of the alkyd medium and slows down the drying time.
Use turpentine or mineral spirits as the solvent for bodied oils and for brush and studio clean up.
Linseed oil is a yellowish drying oil derived from the dried ripe seeds of the flax plant (Linum usitatissimum, Linaceae).
Linseed Linum usitatissimum
Acid Value (mg KOH/g):
Viscosity (Stokes @ 25� C):
Clear/Transparent at 25� C
0.955 @ 25� C
Weight Per Gallon:
Warning: Rags or paper towels contaminated with vegetable drying oils, particularly those containing iron oxide pigments are susceptible to spontaneous combustion. To prevent unexpected fires, used rags or paper towels contaminated with oil-based materials should be collected in a closeable, air-tight container. Store water-dampened rags or paper towels in a metal container with an air-tight top. Alternately, washing contaminated rags will remove contaminating materials and eliminate risk.
Natural Source: Linseed, Linum usitatissimum Acid Value: 5.5 Color (Gardner): 7 Iodine Value: 183.9 Viscosity: 23 Appearance: Clear/Transparent at 25° C Weight Per Gallon: 7.9 lbs.
Natural Pigments is a limited liability company based in Willits, California. We manufacture and distribute rare and hard-to-find materials for fine artists and decorators. We specialize in supplying artists' materials that were used in historical painting since pre-historic times up to and including the nineteenth century.
We constantly search for materials and products of the finest quality so that we can bring them direct to you from the source. To do so, we travel the world to find materials specifically for use by professional artists and decorators. We obtain minerals from mines in Afghanistan, Chile, Russia, Ukraine and Uzbekistan, to name a few places, processing these into natural pigments. We purchase resins, gums and plants from India, Kenya and Malaysia to make natural varnishes and painting mediums.
Our mission is to provide the largest variety of natural pigments, paints and other professional artists' supplies, enabling us to bring you a selection that makes shopping for rare and hard-to-find art materials easy. Our objective is to promote the education and use of these materials among artists by providing detailed information for their employment in encaustic, fresco, oil, watercolor and tempera painting.
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Hi - I need heat-treated linseed oil (not raw and not boiled). Wanted to double check this is indeed heat-treated. Might you be able to confirm? asked by Lisa on Jul 09, 2016
Please be informed that it is heat-treated. answered by Dmitry (Staff)
on Jul 11, 2016