Can SkimStone be used over painted or sealed concrete?
Previously sealed or painted concrete must be taken to bare concrete by grinding or shot blasting. A diamond grinder is the preferred method. This will promote maximum adhesion of SkimStone to the concrete. After removing the old coatings make sure the surface is clean, then pour approximately 1 tablespoon of water on the surface. If the concrete changes color and absorbs the water, it will accept SkimStone.
