Most concrete crack fillers are designed to ... depending on the type of repair material you’re using. While epoxy crack filler hardens completely in about 4 hours, it can take up to 28 days ...

The Quikrete Concrete Crack Seal Adheres To All Types Of Concrete ... which is based on feedback from under 30 customers.

A common problem for a crack that’s been injected is not that the epoxy tends to fail in the injection, it fails where it bonds to the concrete itself. As the epoxy is significantly stronger ...