A: Yes, but you have to make sure you put it on thick to cover all the nooks and crannies.
A: I am not sure, I'm not a painter. I would put a coat or two if used exterior. I hope that helps.
A: Yes, it can be painted. I used interior latex paint. It will absorb more paint than Sheetrock. Don’t expect a smooth surface. I used it in an unfinished basement to keep the insulation intact. I also used screws to attach instead of nails.
A: It is not toxic and can be used in a shed. Mike
A: I used it in a storeroom for my wife & I. I would recommend painting or finish of some sort. My wife had a allergic reaction to it unfinished but I didn’t.
A: I believe this is considered 5/8". The 15/32 is considered 1/2".
A: No. 23/32 is closer to 3/4 inch thickness 19/32 is about 5/8 inch thickness