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Why Polyurethane is a Great Choice for Seawall Repair

Updated: Nov 18


Polyurethane Seawall Repair

When it’s time to have to repair a seawall, you have a couple of options. It’s important that you use the most effective material, as seawalls play an important role in protecting the shoreline. The right material ensures the seawall can do its job, while the wrong material will cost you more time and money down the road.


At Foremost Foundations and Construction, we typically recommend using polyurethane foam to repair seawall damages. This material is a great pick because it’s lightweight, pushes water away, and can be installed quickly. Let’s learn more about polyurethane seawall repair and why it’s a great choice for seawall damage.


Why Do Seawalls Fail in the First Place?


Seawalls are built to be strong and durable since they are responsible for preventing coastal erosion and other damage due to storm surge and wave action. Seawalls tend to be massive structures because they need to resist these strong forces, but this doesn’t mean they’re indestructible. Over time, hydrostatic pressure, storm surges and aging can cause a seawall to need repairs.


When repairing a seawall, it’s important that the right material is used. Otherwise you run the risk of having voids return in the soil, compromising the stability of the structure. That’s why the best material to use for seawall repair is polyurethane foam. This resin material has both permeating and expansive qualities, and it starts working right away!


What are the Benefits of Using Polyurethane for Seawall Repair?


For a long time, cement grout was used to repair seawalls. This process involves adding cement to cracks and filling it temporarily. However, concrete is not an effective solution because it only offers short-term support, washes off easily, adds unnecessary weight to the wall, and is expensive.


Polyurethane, on the other hand, is lightweight, economical, and effective. Small half-inch holes are dug and an eco-friendly material is injected into them. The polyurethane fills inner voids and cracks in a short amount of time, typically taking a day or two to complete! No permits are required, and the material is hydrophobic, so it naturally pushes water away.


To recap, the advantages of using polyurethane foam for seawall repair are:


  • Fast installation - usually takes a day or two

  • Highly effective and long lasting

  • Lightweight and economical

  • No permits required

  • Environmentally friendly

  • Hydrophobic properties - pushes water away

  • Strengthens the seawall


Learn More About Polyurethane Seawall Repair


Seawall failures are common and repairs can be expensive and unsafe if the wrong materials are used. Foremost Foundations and Construction provides residential and commercial seawall repair using lightweight polyurethane foam. Contact us today to learn more about protecting your seawall.




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