SCP 743 is a spray-applied treatment that is specifically engineered to penetrate into 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, hence improving resistance to chemical and environmental attack. 

SCP 743 works by penetrating into 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), the same reaction product provided by 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 vapor 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.  There is minimum site disruption that allows early access for other trades.

Spray-Lock Concrete Protection® technology is unique with over 40-years proven performance.


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SCP 743 Benefits:

• Reduces reinforcing steel corrosion potential

• Can extend the surface life of concrete structures

• Improves resistance to chemical and environmental attack

• Permanent protection

• Access slabs in as little as 1 hour

• Minimizes mold and mildew

• Reduces potential development of corrosion conditions in concrete

• Enhance cure for new concrete

• Accepts all coatings and coverings

• Saves time and money

• Non-flammable

• Zero VOC

• Easy and safe to apply