Mica Powder - Assorted ColoursShimmery mica powder For use on paper, cardstock, chipboard, wood, metal and other surfaces. Directions: Sprinkle powder into mediums such as Colour Blast Heavy White Gesso, gel medium, or modelling paste to colour this product for the desired finish. It can also be mixed into other art mediums. Mix into water to create a spray (powder will settle in the water and won't dissolve) to create a shimmery finish on surfaces Acid free, non toxic, non