Axalta’s ready-to-use Permahyd sanding paste is easy to use, especially when trying to get those hard-to-reach areas not quite reachable by a sheet of sandpaper. The paste can be thinned out with water to create a sanding solution suitable for prepping blending areas. The paste contains thousands of tiny microcrystals designed to create a homogeneous, flat surface when applied. The paste comes in cases of six, with each bottle containing about 650ml (22 oz.) of product.