WATERGUARD A is prepacked two component acrylic modified cementitious waterproofing coating for concrete & masonry that can be applied on well prepared sound substrates to provide extremely tough and durable waterproofing coating of 1.5–2 mm when applies with glass fiber sheet (WATERGUARD GRS). WATERGUARD A must be used in conjunction with WATERGUARD T or WATERGUARD WM(F) where water under hydrostatic pressure exists