Foundation Crack Repair Done Right
In 9.9 times out of 10, foundation crack repair is NOT done correctly. Literally, for over 25 years, I have been doing Epoxy Injection. I have tried years ago by spreading the ports 12″ to 8″ between ports and the thinnest of Epoxy will not travel from port “A” to port B” successfully filling the crack inside the wall. I look at foundation walls more than I would like to and people, plain and simple, are getting ripped off. I see epoxy jobs that were done by other companies that think by putting 3 ports in a 7ft wall crack will do the job. When I am asked to look at a foundation wall it may be a very simple crack repair job. I explain to people the proper way to inject a hairline crack. Epoxy Injection is a 3 step process, no matter how you look at it.
Day 1 the cracks are drilled 1/2″ deep into the center of the crack. Ports are spaced no more than 6″ apart. After the holes are drilled the ports are blown out with pressurized air.
DAY 2 – INJECTED EPOXY into the wall cracks. The ports are capped to prevent leakage of Epoxy.
DAY 3 – The ports are cut off and Epoxy 300 a quick setting Epoxy is placed and smoothed over the drilled portholes.
Epoxy injection into a hairline crack in your foundation wall step by step instructions by the Crack repair specialist
- Using a wire brush, rub crack thoroughly to remove any debris from crack.
2. Using an electric hand drill with a 1/2″ concrete drill bit start drilling holes 1″ into the start of the crack continuing to the end of crack. Holes will be spaced apart 6″ to 8″ apart, depending on the crack.
3. Inset plastic hollow ports into the 1/2″ drilled holes.
4. Using quick setting synthetic concrete mortar around the ports and in between the ports covering the crack from start to finish.
5. After this step is completed, we will come back to the home the next day to start the Epoxy Injection into the Plastic hollow ports. This will allow the concrete mortar to set up properly before the epoxy injection.
6. At the beginning of the crack and at the first port, begin injecting epoxy into the port slowly until the Epoxy comes the through the next port.
7. Cap the ports as you move down the crack epoxy injection from start to finish.
8. Once the epoxy has been injected into the ports from start to finish, let the epoxy harden until the next day.
9. The next day cut the ports off as close to flush to the concrete foundation wall as possible. Once all of the plastic ports have been cut off apply NP 1 Polyurethane over the entire crack for addition crack sealing. This will be applied using a caulk gun and polyurethane applicator.
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