Toupret Joint, Skim & Fill is a filler for surface finishing, plasterboard jointing and filling. For normal applications, one coat is all you need, for extreme applications more than one may be required. This product is easy to sand and has no shrinkage, no depth limit as well as not needing to spot prime. For use on plasterboard, old painted surfaces, gypsum plaster, cement, concrete, cellular concrete and primed wood. Can be painted 12-24 hours after application and overcoated with any type of filler, wall coating or paint.