Natural Pigments Pale Drying Oil is processed from well-settled, filtered raw linseed oil made from selected North American flax seeds. The oil is heated in closed kettles with the scientific addition of driers.
In the past, before soluble liquid driers were developed, metallic driers could only be dissolved and thus made effective by reacting the metal salt or oxide (such as litharge or manganese borate) with the oil at high temperature. It was therefore necessary to heat or "boil" the oil, if you wanted an oil that already contained a drier. Our pale drying oil is made by heating raw linseed oil at a low temperature to slightly polymerize it and adding liquid driers.
Natural Pigments Pale Drying Oil is fast drying. Add small amounts � up to 30% � to your grinding oil when making oil colors or to other tube oil paint to promote faster drying. Add to painting mediums and oil colors to speed drying without the danger of adding excessive amounts of driers. This is a good substitute for "black oil" and other drying oils.
Use turpentine, spike oil or mineral spirits as the solvent for oil painting mediums 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
|Natural Source: ||Linseed |
|Acid Value (mg KOH/g): ||1.1 |
|Color (Gardner): ||11 |
|Iodine Value: ||181.2 |
|Viscosity (Gardner @ 25� C): ||A |
|Appearance: ||Clear/Transparent at 25� C |
|Specific gravity: ||0.928 @ 25� C |
|Weight Per Gallon: ||7.742 lbs. |
|Dry Time: ||16 hrs. max. |
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.