A deep brown-black. "Produced from the tannic acid of oak bark in a reaction with iron salts…" - Kremer Pigments. Kremer also cautions that in watery applications it can be corrosive of paper.
Ink Stone
A deep brown-black. "Produced from the tannic acid of oak bark in a reaction with iron salts…" - Kremer Pigments. Kremer also cautions that in watery applications it can be corrosive of paper.
Excellent
Semi-Transparent, Semi-Opaque
High
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