Montana Granit Effect Spray is a water-based special effect spray paint with fine plastic particles for a deceivingly realistic granite effect. Applicable on many different surfaces such as paper, cardboard, primed canvas, wood, glass, metal, ceramics, porcelain, stone, polystyrene and other paintable acrylic materials. The Montana GRANIT Effect is very high covering. For best results it is advisable to prime your surface when using light colored GRANIT Effect shades, particularly when painting on dark surfaces.