Staff Answer
Jul 13, 2019 - 06:10 AM
Unfortunately, we have no clear coatings that can be submerged underwater. Our AFM Safecoat Polyureseal EXT is highly water resistant but should not be used in a sink. Probably your best bet is Petit bottom paint used on sailboats. These epoxy coatings are quite toxic, however, which is why we don't sell them.
