Bostik Integral Waterproofer 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. Suitable for external or basement renderings, swimming pools, sewers, and tank linings as part of a waterproofing system. It is chloride-free and has no corrosive effect on reinforcement. Not suitable for use in structural concrete. Available in a 5L size.