Dr. Fixit POLYPLUS CP Admix is an integral crystalline waterproofing admixture added to the concrete mix at the time of batching. It consists of Portland cement, very fine treated silica sand and various active chemicals. These active chemicals react with the moisture in fresh concrete with the by-products of cement hydration to cause a catalytic reaction, which generates a non-soluble crystalline formation throughout the pores and capillary tracts of the concrete. Thus the concrete becomes permanently sealed against the penetration of water or liquids from any direction. The concrete is also protected from deterioration due to harsh environmental conditions. The admixture also has the ability to self-seal minor cracks & withstand high level hydrostatic water pressure.