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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