Updated: March 4, 2024

Using Epoxy Injections for Structural Repairs

If you’ve got a structure that’s experienced damage due to an overload, vehicle impact, earthquake, or any other “one-time” event, then you may want to consider using epoxy injection for your structural repairs. The epoxy injection method is an easy way to repair cracks in a structure, and it works great for horizontal, vertical, and overhead applications. At Adhesives Technology Corp. we have proven evidence that epoxy injection can restore the integrity of a structure as well as provide resistance to moisture penetration. Come to us for epoxy injection crack repair.

The epoxy injection method has a fairly simple application process. The basic materials needed are: capping paste, injection ports, injection equipment, and injection resin. The type of injection resin you will need varies on how deep the structural cracks are, as well as whether or not you’re dealing with a blind side crack. Typically, an epoxy injection resin is a low-viscosity, moisture-tolerant material that is slowly setting and has a high modulus. Adhesives Technology Corp. manufactures several different types of resins and can help you select the correct one, as well as the correct amount, for your needs.

Epoxy Injection Process

The epoxy injection process begins with the application of a capping paste, which serves to seal the surface of the crack and help bond the injection ports to the concrete. The injection ports, which can be either surface mount ports or socket mount ports, are the means by which the epoxy resin will be delivered into the cracks. Ports are generally spaced about 6-10 inches apart and may include a reservoir port for more rapid material delivery. If you’ll be performing larger applications, then you may even want to consider using a port manifold to make epoxy delivery easier. We will also be able to help you with epoxy injection crack repair cost questions.

Worker injecting epoxy into cracks

Once capping paste is used, ports are drilled or installed, and any loose material and dust is cleared from within the cracks, epoxy injection can begin. Epoxy injection begins at the lowest port for vertical applications and at the widest part of the crack for overhead or horizontal applications. Injection methods will vary depending on whether you use tube ports or reservoir ports. The epoxy will take a minimum of 12 hours to cure and will not cure in very low temperatures or cure very slowly in temperatures beneath 50 degrees F. Once the epoxy has cured, ports can be removed
and grinding of the capping paste can occur. In many cases, the surface can even be coated to remove any visual evidence of cracks.

There are a few methods that inspectors can use to verify that the epoxy injection process has been effective and is sufficient to repair the structural damage. At Adhesives Technology Corp. we are more than happy to explain this process further and to provide you with scientific evidence of the validity of this method. Of course, if you’re ready to begin repairs on structural damage right away, we hope that you’ll come to us for some of the best, high-quality, epoxies in all of North America. We are positive that you will be satisfied with the products we manufacture and that you will feel comfortable using us for all of your needs, whether they be a part of a professional construction project or a home improvement project.

Worker spreading surface repair epoxy over a floor with a broom