Colour: Gris Ardoise (Slate Grey)
Details: Dry Ground Pigment
Technical characteristics :
Chemical name : iron oxide and chromium oxide
Color index : Bk11 - G17
Apparent density : 600 g/l
UV resistance : good
Coloring power : average
 
Use : lime, wax, paint, plaster, fresco, glaze, cement, fine arts.
This pigment is in powder. For use in artistic paint, it should be finely ground in a mortar before mixing it with the binder.
Linseed oil : dilute the powder in some turpentine oil before adding it to linseed oil.
Paint with water/lime paste : dilute the pigment in some water to make it liquid before incorporating it into the paint.
Lime powder/cement/plaster : directly incorporate the pigment (up to 10% based on the weight of the binder), then mix in order to stain all of your binder.
Color : light gray with yellow tinge and transparent binder. With a white binder, slate gray remains very pale, rather off-white.
 
This pigment is 98% natural. 
Made in France.
History : New pigmentary preparation made by Ocres de France in 2015.