Hello Rocky. Yikes… As you found out, you never use soaps on a coating between coats. How long was the coating down before you mopped it? Also, acrylics are not as durable as epoxy or polycuramine. The number one rule for coatings is that the clear coat should be equal to or better in performance than the color coat.

Hi Joanne. Many of the videos that reference grinding the concrete are applying commercial quality, multi-coat epoxy, and metallic epoxy systems. RockSolid is not such a product. It comes with an eco-friendly citric acid etch to prep the concrete. If you grind, RockSolid will adhere well, but the coverage rates will go down and the first coat will cure too thin and not look good. This is due to how much gets absorbed by the concrete from grinding. This is one of the reasons that Rust-Oleum states in the data sheets not to grind. Just sand off the paint overspray and then use the supplied etch for the best outcome.

Hi Yuna. No, RockSolid can’t be applied to vinyl. It will peel right up.