GAST manufactures its own cementitious base polymer waterproofing product namely CemSeal X. It is a seamless and flexible polypropylene fibre reinforced acrylic based cementitious waterproofing membrane which may be used as a final finish and may also be tiled if so desired. Cemseal X is mixed with portions of OPC cement to create a thixotropic slurry. Our product is biocide stabilised and therefore inhibits bacterial and fungal growth. GAST uses this product with versatile applications from balconies to walkways, stairways and showers.