vallejo artist akrylmaling burnt umber Bordstaffeli Colour index number: 77267-77491-77492

Colour index number: 77267-77491-77492

Permanence: A

Slight grit gives a velvet surface

Synthetic Red Iron Oxide

vallejo artist akrylmaling burnt umber Bordstaffeli Colour index number: 77267-77491-77492Color: Burnt Umber Permanence: AA Opacity: Opaque Pigment: PBr7 Pigment description: Calcined Natural Iron Oxide ASTM Rating Ligthfastness: I Pigment classification: Natural inorganic Color Index Number: Viscosity range (mPa. s): 20. 000 25. 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 extracted from minerals and soil, such as natural