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Williamsburg - Series 2 - Ultramarine Blue French
Ultramarine Blue French
Series: 2
CI #: NA
CI Name: PB29, PV15 
Pigment Name: Polysulfide of Sodium Alumino Silicate, Polysulfide of Sodium Alumino-Silicate
Lightfastness: ASTM I - Excellent
Opacity: Transparent
Grind: Very Fine
After testing dozens of samples from around the world we finally found one that fits our requirements. Beautifully transparent, rich, deep, with a hint of red in the undertone.

Williamsburg - Series 2 - Ultramarine Blue French

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