Preparation steps are important, but the product is easy to work with. The hole drilled for the 3/8" threaded rod and glue was 7/16" in diameter and 2-1/2" deep. The glue set quickly and provided a strong and secure bond between the pole and the concrete. Two problems: I had trouble getting it in and out as the neck of the glue tube was only a hair's breadth larger than the narrow part of the caulking gun's opening; It's not clear if it will be reusable, so it's a bit expensive for a small number of holes. I had to use it with.
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