SCP 327 Time of Placement is a non-VOC, pre-mixed, spray-applied treatment that penetrates into Portland cement concrete substrates at the time of placement.

SCP 327 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, coverings, and flooring. This action makes SCP products an effective waterproofing agent, even under hydrostatic pressure.

SCP 327 is a one time spray-on treatment that penetrates, providing permanent waterproofing and protection.  It withstands hydrostatic pressure and can be effectively applied on the positive or negative sides of concrete structures. There is minimum site disruption and provides early access for other trades. 

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


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• Superior cure as strong as 28-day waterponding without delays

• Waterproofs new concrete

• Eliminates the need to remove curing membranes

• Allows flooring and coating installation in as little as 14 days

• Enhances resistance to chemical and environmental attack

• Permanent protection

• Access slab in as little as 1 hour

• Reduce potential of scaling and spalling 

• Increases durability

• Saves time and money

• Non-flammable

• Zero VOC

• Safe and easy to apply