Sika Seal 501 Waterproof

Permanent Waterproofing: Forms an integral, lasting barrier within the concrete. ​Positive and Negative Pressure Resistance: Effective against both water pushing into a structure (positive) and water pushing out from the inside (negative). ​Vapor Permeable: Allows the concrete to "breathe," preventing moisture build-up from the inside. ​Easy to Apply: Mixed to a slurry consistency and typically applied with a brush. ​Protects Concrete: Shields the concrete and reinforcement from waterborne corrosive substances.