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Grumbacher specifies only the best ingredients that are available, putting every new color through a rigorous selection process. Pre-tested is not only the name but also the philosophy of the way Grumbacher manufacturers each and every one of their products. Grumbacher Pre-tested Oil Brown Madder is formulated from Synthetic 1:2 Dihydroxyanthraquinne on Alumina Base (PR83), Calcinated Natural Iron Oxide containing Manganese (Pbr7), and Nearly Pure Amorphous Carbon (Pbk6). This oil paint has the following properties: - Moderate Lightfastness
- Transparent
This color is available from Cheap Joe’s in a 37ml. tube.
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