The product is Keelock by Keeler & Long. The sealer we used is actually labeled as sealer/primer on the can (cans actually, it’s a two part). The instructions on the cans call for sealer/primer then epoxy. This also came with a cleaner that is sprayed on to any and all stains or deposits on the concrete. Then wipep/washed off. I don’t believe it’s an acid because it’s labeled as a “safer” product.