Sounds like we ran into the same issues... I went through 5 neoprene gloves on about 2 cu ft of fiberglass laid, everything was sticking to me. Not to mention pissing off the wife fiberglassing the good scissors closed... oops!

You can use other material for speaker enclosures rather than the fiberglass mat. Go to Wal-Mart and grab some 100% fleece, stretch that over the frame you created and apply the fiberglass resin to it. It'll work just as well and won't cost near as much.