Pre-Tested Oil Colors
Grumbacher Carefully selected pigments are ground in refined linseed oil. The colors offer the artist high tinting strength and brilliant color. Each tube conforms to ASTM standards for lightfastness and quality. Permanent and intermixable. The rich, buttery texture combined with a wide range of vibrant colors make Pre-tested® oil colors a favorite paint among instructors and professionals. Proudly made in America, quality is the key ingredient in every tube of paint. Each color is comprised of pure pigments and refined linseed oil, which is tested several times throughout the manufacturing process. The result is tube after tube of consistently smooth, brilliant color with excellent performance and permanence.

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