Peeling epoxy from a previous DIY kit
Why it happens here
Big-box epoxy kits tell you to acid etch the slab, which cleans the surface but does not open the pores the way grinding does. The coating sits on top rather than bonding in. In Thompson's damp climate, moisture finds the weak bond and lifts the coating from underneath, usually within a year or two.
Our approach
We strip the failed coating, grind the slab with a diamond grinding wheel to create a proper surface profile, and rebuild with a primer and a coating system designed for the conditions. It costs more than another kit, but it does not fail the same way.