Natural Sienna Pigment from Coloured Earth is a natural earth pigment mined in France.
Pigment Name: Natural Sienna �?169
Pigment Type: Natural Earths & Ochres
Country of Origin: France
Colour Index: Y43
Density: 900 g/l
Chemical Make-up: Natural Iron oxide
Chemical Formula: SiO2+Al2O3+Fe2O3+Fe3O4
Lime Stable? Yes
Suitable for External Use? Yes
UV Rating: Very Good
Colouring Power: Very Good
Particle size: 50 microns (325 Mesh)
Heat Stability: Colour Stable to 165°C / 330° F
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