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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.

Crack-Pac® Flex-H2O™ crack sealer is also available in the Crack-Pac Flex-H2O Injection Kit. The kit includes everything needed to pressure inject approximately 8 lineal feet of cracks:

  • 2 Crack-Pac Flex-H2O cartridge/nozzle sets
  • 12 E-Z-Click™ Injection Ports
  • 2 E-Z-Click™ Injection Fittings with 12" tubing
  • 1 pint of paste-over epoxy (8 oz. of resin + 8 oz. of hardener)
  • 4 disposable wood paste-over applicators
  • 1 pair latex gloves

FEATURES

  • Seals seeping or mildly leaking cracks
  • 400% elongation provides a flexible seal for moving cracks
  • Can be dispensed with a standard caulking tool
  • Can also be used on dry cracks
  • Can be used with a reduced amount or without accelerator to slow down reaction time
  • Expands to fill voids and close off the back of the crack
  • Expanding nature makes it suitable for sealing cracks in solid masonry
  • Fast reacting - reaction begins within 1 minute after exposure to moisture; expansion may be completed within 3 minutes (depending on the amount of moisture and the ambient temperature).
  • Non-shrinking hydrophobic formula with the elongation and flexibility of a hydrophilic resin
  • 20:1 expansion ratio (unrestricted rise) means less material needed

APPLICATION

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

additional components needed

*CIP-F requires EIP-EZA port.

Capacity Ounces (Cubic Inches)

 N/A 18 (32.4)

Cartridge Type

 N/A Single

Package Quantity

 N/A 2

Dispensing Tool(s)

 N/A CDT10S Or Standard Caulking Tool

Mixing Nozzle

 N/A Included