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Crack-Pac® Flex-H2O™ Polyurethane Crack Sealer

Crack-Pac® Flex-H2O™

The Crack-Pac® Flex-H2O™ polyurethane injection resin seals leaking cracks, voids or fractures from 1/32" to 1/4" wide in concrete or solid masonry. Designed to perform in applications where water is seeping or mildly leaking from the crack, the polyurethane is packaged in the cartridge and an accelerator is packaged in the nozzle. 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.

Key Features

  • Can be dispensed with a standard caulking tool
  • Can also be used on dry cracks if water is introduced to affected area
  • Can be used with a reduced amount or without accelerator to slow down reaction time
  • Expands to fill voids and seal the affected area
  • 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)
  • 20:1 expansion ratio (unrestricted rise) means less material needed
Model No. Option Carton Qty.
CPFH09 Flex-H2O 9 oz. cartridge 12
CPFH09KT Flex-H2O 18 oz. cartridge 2
FH05 Bulk: Flex-H2O Resin (5 gal.) / Flex-H2O Catalyst (16 oz.)

Applications

Application Considerations:

  • Suitable for sealing cracks ranging from 1/32"–1/4" wide in concrete and solid masonry.
  • Suitable for repair of 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.
  • In order for components to mix properly, the resin and hardener must be conditioned to 60°F–90°F before mixing

Color

Polyurethane - clear, accelerator - green, cured - green

Storage Conditions

For best results, store in a dry area between 45°F and 90°F. Product is very moisture sensitive.

Shelf Life

12 months from the date of manufacture, unopened

Installation

  • Suitable for sealing cracks ranging from 1/32" to 1/4" wide in concrete and solid masonry.
  • Suitable for repair of 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.
  • In order for components to mix properly, the resin and hardener must be conditioned to 60°F–90°F before mixing.

Clean Up

Uncured material – Wipe up with cotton cloths. If desired scrub area with abrasive, waterbased cleaner and flush with water. If approved, solvents such as ketones (MEK, acetone, etc.), lacquer thinner, or adhesive remover can be used. DO NOT USE SOLVENTS TO CLEAN ADHESIVE FROM SKIN. Take appropriate precautions when handling flammable solvents. Solvents may damage surfaces to which they are applied. Cured material – scrape or brush off surface with a putty knife or wire brush. Tip: wetting the concrete or masonry surface immediately prior to injection will make cured resin easier to remove.

Options

Crack-Pac® Flex-H2O™ polyurethane crack sealer is also available in the Crack-Pac® Flex-H2O™ Kit. (CPFH09KT). Kit includes:

  • 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 ETR paste-over epoxy (8 oz. of resin + 8 oz. of hardener)
  • 4 disposable wood paste-over applicators
  • 1 pair latex gloves

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