Crack-Pac® Flex-H2O™ is a high solids hydrophobic polyurethane injection resin designed to seal leaking cracks, voids or fractures in concrete or solid masonry. The polyurethane is packaged in the cartridge and an accelerator is packaged in the nozzle. When the two are combined in the cartridge and mixed, the result is a low viscosity, water activated polyurethane. When the resin encounters water as it is injected into the crack, it becomes an expanding foam that provides a flexible seal in leaking and non-leaking cracks.
Suitable for sealing cracks ranging from 1/32" to 1/4" wide in concrete and solid masonry. Can be used to repair cracks in dry, damp and wet conditions with excellent results. Designed to perform in applications where water is seeping or mildly leaking from the crack. Apply to concrete 40°F or above.
PROPERTY | TEST METHOD | RESULTS |
Viscosity (77°F) | ASTM D 1638 | 600 cps (liquid state) |
Density | ASTM D 1622 | Highly restricted rise - 65 lbs./ft3 Lightly restricted rise - 10 lbs./ft3 |
Elongation | ASTM D 638 | Highly restricted rise - 400% Lightly restricted rise - 400% |
Tensile strength | ASTM D 638 | Highly restricted rise - 2200 psi Lightly restricted rise - 300 psi |
Tear strength | ASTM D 624 | Highly restricted rise - 400 psi Lightly restricted rise - 55 psi |
Additional Components Needed For Crack Repair
*CIP-F requires EIP-EZA port.