Williamsburg Oil Colour 37ml - Cold Black

Cold Black
Series: 2
CI #: NA
CI Name: PB29, PBk9
Pigment Name: Polysulfide of Sodium- Alumino-Silicate,Amorphous Carbon produced by charring animal bones
Lightfastness: ASTM I - Excellent
Opacity: Opaque
Grind: Fine
Actually the name says it all. Has beautifulsubtle transparent blue undertones.