CEMEX DAMP-PROOFING KIT a two part waterproofing system incorporating a blend of cementitious powders combined with proprietary activating chemicals and high grade quality aggregate fillers with HYPERDAMP Bonding Agent. CEMEX DAMP-PROOFING KIT is a waterproofing system for concrete, cementitious and masonry substrates. It penetrates the surface through moisture absorption and reacts with the free lime forming a hard crystalline material which blocks the pores against water penetration and becomes an integral part of the structure. It provides positive and negative waterproofing pressure against dampness and ground water as well as hydrostatic pressure.