Colour number: 47

Pigment description: -

Guignet of Paris patented the process for manufacturing Viridian Green in 1859

Lightfastness: Lightfast pigment according to ASTM category 1 and 2

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raw umber vallejo akrylmaling 1 Size:125ml Colour number: 47Color: Raw Umber Permanence: AA Opacity: Opaque Pigment: PY42, PR101, PBk7 Pigment description: Synthetic Iron Oxide, Synthetic Red Iron Oxide, Nearly Pure Amorphous Carbon ASTM Rating Ligthfastness: Pigment classification: Mixture Color Index Number: Viscosity range (mPa. s): 15. 000 20. 000 Color Index The pigments used for artists' colours are inorganic as well as organic. The inorganic pigments have been used since antiquity; most of them are