Grumbacher Pre-tested Oil Colors
Grumbacher Pre-tested Oil Colors are made from carefully selected pure pigments which are ground in refined linseed oil. The colors offer the artist a rich, buttery texture, high tinting strength and consistently smooth, brilliant color. Each color is tested several times throughout the manufacturing process ensuring excellent performance and permanence. Conforms to ASTM standards for lightfastness and quality. Permanent and intermixable. Made in America.
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