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Concrete Crack Repair Home
Floor & Slab Crack Repair
How crack injection works A cost effective permanent fix for basement leaks
Low-Pressure Crack Injection (Basement Walls and Foundations)
Do-it-yourself crack repair A kit for contractors and homeowners.
Basic steps in the injection pocess Installing injection ports, sealing, epoxy vs. polyurethane, injection and port removal
Allowable crack widths At what width does a crack become a problem?
Related Information
Concrete Repair General overview of concrete repair
Concrete Patch Repairing cracks in concrete flatwork
Foundation Repair Repairing a concrete foundation
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The secret to effective crack injection, whether using epoxies or polyurethane foams, is gradual introduction of the liquid polymer into the crack at low pressures (20 to 40 psi). This method requires some patience, but it allows the applicator to monitor the injection process and ensure that the crack is completely filled. Incomplete injection of a crack is the most common reason for crack repair failure.

To fill a typical crack in a residential foundation wall, injecting at pressures above 40 psi may not be effective. At higher pressures, the liquid has enough force to overcome gravity and rise up the crack without filling the backside, which is typically narrower than the front of the crack. High-pressure injection is better suited for repairing cracks in very thick-walled structures or where a high volume of water flow must be stopped (such as dam repairs). See www.rhinocarbonfiber.com for more information on low pressure crack injection.

Concrete Repair and Troubleshooting

Sources of Foundation Repair Systems


Featured Products
Small Slab Repair Kit Affordable - free shipping
Spartacote Fast Fix Repair for feather edge repairs
Polymer Repair Product Quick Mender - rapid repairs
Foundation Crack Repair Kit Repairs foundation cracks from the inside.
Concrete Crack Repair Fast drying urethane for cracks and imperfections