Thanks to all. I live in Oregon, and it is WET outside. Nevertheless, after giving it some thought, and considering the hazards inherent in an all-gas powered home, I decided to hang the batting from my little clothesline outside in my covered breezeway. I used those plastic clothespins with a clip on one end and a hook on the other. Sprayed one side of the batting, then moved it inside to my ping pong table and applied it to the back. When it was nice and smooth, I took it back outside (with the back attached) and hung it again. Then I sprayed the other side of the batting. Brought it back inside and finished up with the top. It worked like a champ. It feels very solid. No fires, no problems from overspray. It feels like the battle is half won. Now for the quilting. Wish me luck!