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Epoxy or Polyurethane - What to Use for Filling Wall Cracks?
Monday, 24 May 2021

Many homeowners notice cracks in their basement concrete walls. It's a common phenomenon and simply unavoidable. These cracks require foundation repair services. Professionals recommend you fill the gaps and seal them. For this purpose, they use either epoxy and polyurethane foam.

These injections fill the wide gap and offer you peace of mind that the foundation of your home is stable and is not on the verge of collapse. However, you might find yourself in a position where you need to choose between Epoxy and Polyurethane foam. Thereby, it's time to know what these injections are and what you should pick for your following foundation repair services in Indianapolis.


Soil shrinkage and expansion cause wide cracks in your concrete walls. Thereby, experts prefer an epoxy injection. Epoxy is a high-strength adhesive that is used to restore the structural integrity of the crack. It is strong enough that it welds the cracked wall back together. Once the epoxy is injected, you won't have to worry about crack formation.
It's because these high-strength epoxies eliminate soil movement due to seasonal or temperature changes. Experts use low viscosity epoxy for load-bearing applications. Based on the type of crack or extent of damage, foundation repair professionals pick different classes and types of structurally graded epoxies.
If you make up your mind about a high-strength epoxy, then you should ask an expert whether this material meets ASTM standards or not. The reason behind this question is that the product will meet the claimed strength, and it will create the minimum bond of cracked concrete.

Polyurethane foam

It is a strong resin used to fill cracks and joints. This foam expands in the water pressure and is flexible enough to allow movement in the gap or joint due to foundation settlement or soil pressure. This injection is cost-effective and takes less time to cure. Professionals recommend this structural wall repair services in Indianapolis to those homeowners who can't afford much but need an economical solution. Less resin is good enough to fill wide cracks and deal with loose soil conditions.
When your basement crack is active and leaking constantly, you can fill them quickly with Polyurethane injection and see good results. It's because this resin is moisture reactive. It will expand and thrive in this environment. If your basement faces cold joint type leaks or other unusual issues in cracks, you should consider a poly injection.

What is the better choice?

The first thing to do is to consider is your budget. If you can afford expensive epoxies, you can use them for your next basement repair service in Indianapolis. However, if budget is the main issue, you better fill the gaps with polyurethane foam. Another consideration is the experience. Some companies suggest polyurethane foam, while others prefer epoxy. It would be best if you didn't force your choice onto them. It's because they are comfortable and experienced with certain types of injections. For residential repair, both kinds work effectively. If cracks in the walls are due to soil movement or foundation settling, only an expert of Indiana structural wall repair company can recommend the best solution.
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