Not sure the brand. Just used a regular satin indoor black. Polyurethane for the coating (which I think would waterproof it, the outside at least).
I know when I put a canopy over my 55g, the skimmer skimmed out a bunch of stuff for a couple of days. So, I think I'm going to let this one extra dry so no fumes or anything get in the water.
Or, I could just put it on while I'm cycling. I'm going to be doing a very large water change anyways. hmm.