Slate Grey pigment from Coloured Earth is made with natural Earth pigments mined in France. Slate grey's natural colour is achieved with a mixture of iron oxide and chromium oxide.
Pigment Name: Slate Grey �?181
Pigment Type: Natural Earths & Ochres
Country of Origin: France
Colour Index: Bk11-G17
Density: 600 g/l
Chemical Make-up: Iron oxide and chromium oxide
Chemical Formula: Fe2O3+SiO2+Al2O3+CaO+MgO
Lime Stable? Yes
Suitable for External Use? Yes
UV Rating: Good
Colouring Power: Average
Particle Size: 50 microns (325 Mesh)
Heat Stability: Colour Stable to 165°C / 330° F
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