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6- 10 ‘ Pro Concrete Foundation Crack Repair Kit

$174.50 USD

Easy to use kit stops leaks in concrete foundation cracks.

  • Improves the air quality of the building-eliminates musty odors from leaks
  • Increases the home value
  • Fastest setting repair kit-One hour total time
  • Ultra thin Hydra Stop 300 polyurethane resin gets into tight cracks
  • Works on cracks in corners corners too


  • Easily removed Peel Paste grey surface sealer and port adhesive
  • Repairs approximately 6-10′ of concrete basement wall crack.
  • Professional dual cartridge injection gun included
  • Fastest setting repair materials
  • Ultra thin Hydra Stop 300 polyurethane resin gets into tight cracks
  • Works on cracks in corners corners too
  • Wide based surface and corner injection ports


  • Exclusive tight fitting injection ports seal tightly to static mixers for a quality injection
  • Stops leaks in a concrete basement crack
  • Materials for approxamtely 6-10′ of leaking crack
  • Repair concrete crack from inside the basement
  • Fills the entire foundation crack
  • Same materials the pros use
  • Video instructions
  • No drilling of the concrete crack required

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Professional Materials Stop Water Leaks-Easy to Use D0-It-Yourself Kit

Concrete basements can develop cracks that let water into the living area.  This water can ruin your belongings and allow mold and mildew to grow.  Now you can repair up to 10 feet of cracked foundation wall with our Pro Concrete Foundation Crack Repair kit.  The Hydra Stop 300 and Poxy Paste are packaged into 22 ounce (300 x 300 cc) cartridges, same as what the pros use.  The kit includes the special dual cartridge gun for dispensing the cartridges.


  • Instructional Video
  • 1 Cartridge Poxy Paste Surface Sealer
  • 1 Cartridge of Hydra Stop 300 Hydrophobic Polyurethane Foam
  • 1  Dual Cartridge Injection Gun
  • 15 Surface Ports
  • 10 Corner Ports
  • 4 Mixing Bowls
  • 1 Static Mixers
  • 10 Stir Sticks
  • 4 Pairs Latex Gloves
  • 1 Flexible Hose Assembly

Application & Coverage

Suitable for application in concrete cracks 1/32” to 1/4” in width. Concrete should be above 40 F. Can be used to stop leaks in dry or wet cracks. Surface of the concrete must be dry for use.

Where to Use

  • Cracks wider than 1/32″ (thickness of a fingernail)
  • Concrete cracks in basement walls
  • Retaining walls
  • Sewers
  • Pipes and water lines

Use from the basement interior only when repairing a basement wall crack.

Repair Process

Hydra Stop 300 is a low viscosity liquid polyurethane. Once inside the crack, the Hydra Stop begins to foam and expand. This expansion completely fills the crack and stops water.Step

1. View the video included with the kit

2. Attach surface or corner ports over the foundation crack using Poxy Paste Crack Seal & Port Adhesive

3. Cover the entire foundation crack with Poxy Paste Crack Seal & Port Adhesive

4. Inject liquid Hydra Stop 300 polyurethane crack injection resin into the foundation crack

5. Place caps into the surface or corner ports to seal them

6. Ports and Poxy Paste can be removed after the Hydra Stop 300 has fully cured

Cured Hydra Stop 300

This is an example of the fully cured Hydra Stop 300. It remains flexible and forms a closed cell structure.


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