Emecole Metro 10 ft. DIY Foundation Crack Repair – Polyurethane Injection Kit


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  • Includes the components to repair non-structural cracks in poured basement walls, up to approximately 10 feet, with the use of your own standard caulk gun.
  • Features our premium and highly expandable polyurethane, providing the most user-friendly injection option. Includes two universal cartridges to accommodate crack widths from hairline thin to 1/16″ wide.
  • Cracks are completely filled from front-to-back and top-to-bottom to form a flexible and watertight repair.  Provides the ultimate stop gap against water and soil gases, such as radon.
  • The proven low pressure crack injection process is used by professional contractors and do-it-yourselfers to successfully repair basement wall cracks.
  • Two (2) universal cartridges of Emecole Metro 102 Premium Polyurethane
  • Choice of Surface Seal
    • Stays on the wallTwo (2) jars of Emecole Metro 901 Surface Seal – cures in approximately one hour and stays on the wall after injection (may be removed, if desired, by chipping or grinding it off)
    • Easily peels off the wall – Two (2) universal cartridges of Emecole Metro 322 Premium Surface Seal-n-Peel – cures in approximately 35 to 45 minutes and easily peels off the basement wall leaving a clean finished look
  • Fifteen (15) surface ports and caps
  • Static mixing nozzles
  • Injection hose assembly
  • Also included are rubber gloves, safety glasses, wire brush, mixing sticks, drop cloth, plastic trowel and written instructions.

Additional Components Required (Not Included)

  • Standard caulk gun (for injection of Emecole Metro 102 Premium Polyurethane)

Step-By-Step Instructions

Video Instructions:

Emecole Metro Support Video Injection with Surface Seal

Emecole Metro Support Video Injection with Surface Seal-n-Peel

Written Instructions:

Informational Document Injection (both Surface Seal options)

Understanding Non-Structural Cracks

Most basement wall cracks are non-structural. They develop due to initial settling of the foundation or natural shrinkage of the concrete within a few months after being poured. They are usually thin, anywhere from hairline to 1/8″ wide, and are likely to be vertical. While these cracks can be a nuisance by allowing in water and soil gases, such as radon, they do not pose a structural risk to the foundation.

The included polyurethane with this kit, Emecole Metro 102 Premium Polyurethane, expands up to 20 times its original state of volume upon being injected into the wall. This high expansion capability makes injection user-friendly while providing the best opportunity to completely fill the crack, ensuring that the repair completely keeps out water and soil gases, including radon.

Repairing Structural Cracks?

Cracks that form due to foundation movement (i.e. settlement, soil pressure or freeze/thaw cycles) may compromise the basement wall if left unaddressed over time. These cracks, known as structural cracks, are usually 1/8″ wide or greater and are more likely to be diagonal, horizontal, jagged or stair-stepped.

We do not recommend our premium polyurethane option for repairing structural cracks since it is not as strong as epoxy. The added strength of our premium epoxy fuses cracks back together, resulting in a very strong and watertight repair. For repairing such structural cracks, we recommend the Emecole Metro 10 ft. DIY Foundation Crack Repair Epoxy Kit.

Repair Cracks from the Inside – No Digging or Drilling

The low pressure injection process for repairing basement wall cracks in poured foundations is completed from the inside. This allows homeowners to inject straight into the crack, while the exterior soil provides a stop-gap to ensure that injected polyurethane stays within the crack, resulting in a completely filled crack.

The included Surface Ports, which adhere to the front of the crack at every six to eight inches, allow for the polyurethane material to be injected straight into the crack. There is no need to drill holes into the wall, helping to save time while reducing unnecessary labor.

Repair Wet & Leaking Cracks with Confidence!

Have an unexpected issue or a pre-sale question? Our customer service team is here to help. Our full-time staff of technical support experts are available to help answer any product or application related questions. As the product developer and manufacturer of our injected materials, our team has the expertise to provide the most thorough product help and technical support available.

The low pressure crack injection process was pioneered by our company dating back to 1987, and became the preferred process by concrete and basement waterproofing contractors throughout the United States and Canada. This proven method will permanently repair your leaking basement wall crack problem.

Frequently Asked Questions

Do universal cartridges still contain Part A and a Part B materials?

Yes, the injection material packaged in universal cartridges for this kit contains both Part A and Part B materials. Our universal cartridge is engineered to separate the two component materials horizontally, ensuring they are not mixed while inside the cartridge.

If the basement wall crack is high enough to raise above grade, does the exterior of the crack need to be covered from the outside?

Yes, any cracks that are exposed on the outside because they are above grade will need to be covered with your included surface seal, otherwise, the injected polyurethane or epoxy will leak out, potentially compromising the repair in addition to also wasting material.

A repair to my basement wall crack was previously attempted with the use of hydraulic cement and has since started to leak water again. Can your product still be used to rectify the previous repair attempt?

Yes. The use of this kit requires access to the crack, so a few extra steps will be necessary. The hydraulic cement should be removed by chipping and grinding in order to gain access to the crack. There are some scenarios where this can become more complicated. For such situations, we advise you get in touch with an Emecole Metro technical support expert for additional ideas or workarounds.

Can this product be used in the middle of winter or when the temperature outside is below freezing? What is the coldest (or warmest) temperature your product will work in?

The ideal temperature for the use of the materials packaged in this kit is between 40 and 100 degrees Fahrenheit. Assuming that the basement is heated, any outside temperature should not impact the performance of the chemicals during the basement crack repair process. The only caveat is that chemicals should not be stored in freezing temperatures.