CrobialCoat Quart

This is pretty good but after coating my copper sink I put a small colander of artichokes in the sink and it ate right through the protection and the copper finish underneath - all just sludged right off!Also coated a hammered-aluminum sink in a bathroom and got a cloudy residue at the bottom that I can’t clean off. That was my fault because I didn’t notice that I had put a bit too much on. I should have wiped it off. But it’s good for you to know that it will do that!