Is a Waterproofing Coating that functions as a leak-proof coating. It is suitable for both outdoors and indoors. Powershield consists of two products, PS-188 (1 component, elastic) which can be applied to walls, plaster, cement, or cement fiber board and PS-199 (2 component, cement-based) which can be applied on concrete surfaces, roof tiles, cement fiber board roofs, bathroom floors / walls, kitchens and swimming pools.