This will seal and protect interior terracotta; slate; york stone and other porous flooring after it has been cleaned. It will help to reduce dusting and crumbling and resist marking from water; drink and food spillages. This is a two part product which must be used as a base before applying Stone Floor Shine. For stone floors that just require sealing as a finish or prior to waxing use Floor Sealer. We recomend you apply this product with a brush please see item B100. A 5L will cover 50-60 Msq.