Yeah I figured I didn't have to take it down, but I want it to look pretty

At 3/4" thick now, there is still plenty of stone left. This stone will be lost or broken by someone long before it wears out.

Hugo, I didn't notice if the sandpaper explicitly said it was wet/dry, but it's definitely waterproof. Even more so than regular w/d. It like doesn't get saturated or clogged. It's coated in something I think. Really amazing stuff. It's marketed for autobody work, so it's intended to be used on steel, and probably wet-sanded with. I agree that most w/d paper I've seen is black or grey, but this stuff is pink/purple