LTP Mattstone is a trusted impregnating sealer that preserves the natural matt appearance of stone while offering strong protection against everyday stains. On some surfaces it delicately enhances colour and texture without adding unwanted shine. Suitable for all types of natural and artificial stone, unglazed porcelain, sandstone, slate, marble, terracotta, quarry tiles, brick and paving. Apply liberally with a brush or sponge, allow to absorb, then buff with a soft cloth. Two coats deliver excellent results. Dries in approximately two hours, with full resistance developing over three days.