LTP-MPG Impregnating sealer for polished porcelain, marble, limestone, slate & granite. Colourless and easy to apply impregnating sealer. Suitable for polished floors, walls, worktops and fireplaces. Does not alter the polished finish of the surface. For interior use. Surfaces should be completely clean and dry. If necessary, use LTP Grimex. NB: It is important to remove any factory applied sealer or wax from the tiles before sealing. Apply thinly and uniformly using a soft cloth, sealant applicator pad or sponge. Within 20 minutes, whilst the sealer is still wet on the surface, buff well using a clean dry cloth or buffing machine. Leave to dry for 4 hours and then on more porous surfaces apply a second coat using the same method. It is important to remember to remove any excess from the surface and buff well between each coat.