Key features

• •CRACK SEALANT: Simpson Strong-Tie Crack-Pac Flex-H20 polyurethane injection effectively seals cracks, voids, or fractures ranging from 1/32" to 1/4" wide in concrete or solid masonry, expanding to provide a flexible seal in both leaking and non-leaking conditions.
• •FAST REACTING: Crack-Pac Flex H20 Sealer activates quickly, beginning to expand within 1 minute of moisture exposure. The expansion process completes in as little as 3 minutes, depending on moisture levels and temperature. With a 20:1 expansion ratio, this sealer efficiently fills cracks and voids, using less material to achieve a strong, flexible seal.
• •EASY APPLICATION: Conveniently dispensed with a standard caulking tool, the Crack-Pac Flex-H2O sealer features polyurethane resin in the cartridge and an accelerator in the nozzle, ensuring easy application, precise mixing, and controlled reaction time for efficient crack repair.
• •ADAPTABLE CONDITIONS: Suitable for wet or dry cracks, with options to reduce or omit the accelerator for slower reaction times. This sealer is ideal for non-structural crack repair in various materials such as concrete, brick, and wastewater facilities.
• •SIMPSON STRTONG-TIE RELIABILITY: At Simpson Strong-Tie, our mission is to provide solutions that help people design and build safer, stronger structures. As a pioneer in the building industry, we have an unmatched passion for problem solving through skillful engineering and thoughtful innovation.