Bostik Integral Water proofer helps reduce efflorescence and lime bloom by restricting moisture movement. It aids the reduction of crazing in rich mixtures by controlling the rate of evaporation. It waterproofs and plasticises mortar for external or basement renderings and in swimming pools, sewers and tank linings as part of the overall waterproofing system specification. Bostik Integral Water proofer is chloride-free and has no corrosive effect on reinforcement. It is not suitable for use in structural concrete.