SCP 743 is a spray-applied treatment that is specifically engineered to penetrate the capillaries and pores of reinforced concrete structures to protect embedded reinforcing steel. In addition, SCP 743 seals and waterproofs the concrete capillary and pore structure to improve resistance to chemical and environmental attack.
SCP 743 works by penetrating the capillaries and voids left in concrete as bleed water exits. Once in the concrete, SCP products react with available alkalis to primarily form Calcium Silicate Hydrate (C-S-H). This reaction is the same as that of cement hydration that provides most of concrete’s desirable properties. The reaction products formed fill capillaries and shut down liquid water movement and reduce water vapour transmission to acceptable levels for coatings and coverings. This action makes SCP products an effective waterproofing agent – even under hydrostatic pressure.
SCP 743 withstands hydrostatic pressure and can be effectively applied on the positive or negative side of concrete structures. Minimum site disruption enables early access for other trades.
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Spray-Lock Concrete Protection® technology is unique with over 40-years proven performance.