Intech Anchoring Urethane Injection System

Urethane injection, also known as polyurethane or grout, is the most common way to seal and fill a crack in concrete and foundations. The popularity of urethane injection as a solution is due to its flexibility and versatility for a variety of applications. These include commercial and residential foundation or concrete crack repair.

#900 Intech Anchoring Hydro Sealant

#900 is a single-component hydrophilic polyurethane chemical grout. It quickly expands when it comes in contact with water. This expansion forms a sturdy, flexible closed cell foam that bonds very well to concrete. When cured it becomes an extremely tough and flexible barrier against water penetration.


Urethane Applications

    • Basement cracks

    • Manholes

    • Swimming pools

    • Tunnels

    • Cold joints

Benefits of Intech Anchoring Urethane

  • Moisture insensitive; cures on damp or wet surfaces

  • Easy 2:1 mix ratio

  • No shrinkage

  • Excellent adhesion to concrete, wood, and metals

  • Deep penetration and tenacious bonding

Benefits of Using Urethane Injection Crack Repair

There are many choices in concrete foundation crack repair systems, but not every crack should be treated with the same solution. For situations that are not right for urethane injections, we also offer concrete repair epoxy. Simply because there’s a crack in a home’s foundation does not mean that it is letting in moisture. However, even hairline cracks have the potential to allow water leaks into the house.

A significant benefit of using urethane injections is that it can be applied to damp surfaces. This feature eliminates the need to wait for the surface around the crack to dry. Like all foundation crack repairs endorsed by Intech Anchoring, the urethane will prevent water from entering the interior of the basement.

The urethane injection fits into a variety of situations. It is available in three levels of viscosity to suit any situation and surface—indoors or outdoors.

An additional advantage of urethane injection for concrete repair contractors is the product’s flexibility. Allowing for slight movement or shifting of the foundation protects your investment and prevents further damage.

Properties of #900 Hydro Sealant

AppearanceAmber Liquid
Viscosity600 cps
Weight Per Gallon9.1
Induction Time20 – 30 Seconds
Cure Time4-6 Minutes

Cured Foam Test Results

Tensile StrengthASTM D-1623380 psi
Bond StrengthASTM D-1623250-300 psi
ElongationASTM D-1623400%
ShrinkageASTM D-1004Less than 10%
Tear ResistanceASTM D-357421 lbs./ Inch
DensityASTM D-3574494 kg / m3

Results are based on foam cured under pressure. Properties may vary depending on job conditions.


Installation of Urethane Injections

Installation of urethane injections, which only requires the attention of a 1- to 3-member team, is simple.

There is no need to dry the surface prior to working on it. The installation is as fast as you choose to work and offers minimal disruption to the homeowner. Urethane injections are the most common solution for damp, cracked foundations. This application is partly because of the ease of use and the universal nature of their use.

Take Advantage of the Expertise at Intech Anchoring

If you are looking for a concrete crack injection solution, we have access to a variety of products that will fit your needs. Concrete contractors and even homeowners can consult with us on which product is right for their leaking concrete cracks. You can trust that our recommendations are based on our expertise and what we think is best for your issues. Our only allegiance is to the needs of our clients. We take pride in being personally active with your projects and typically offer a same-day response for your calls.   

Intech Anchoring Urethane Packaging

    • 10.5 oz. Single cartridges (fits standard caulking gun) packed 12 per case.

    • 22 oz. Dual cartridges packed 12 per case

    • 1 gallon cans

    • 5 gallon pails


Materials must be stored in dry conditions below 80`F Under proper conditions, the shelf life is 1 year. In unopened containers.

#900 Urethane Warranty Information

All recommendations, statements, and technical data contained herein are based on tests we believe to be reliable and correct. Intech Anchoring warrants its products to be free of manufacturing defects. At the time and/or place of shipment our material will meet current published physical properties when applied with ASTM and Intech Anchoring standards. Intech Anchoring liability is limited to the replacement of the material if found to be defective.

As Intech Anchoring has no control of the use to which others may put its products, it is recommended the products be tested to determine if suitable for a specific application and/or our information is valid in a particular circumstance. Responsibility remains with the architect, engineer, contractor, and the owner for the design, application, and proper installation of each product. Nothing contained herein shall be construed to be a recommendation to use or as a license to operate under or to infringe any existing patents.

To learn more about urethane injection systems and our other concrete crack solutions, contact Intech Anchoring today.