3M 77 Spray Glue and OC 703

Hi folks: Just wanted to let everyone know that you might need to be careful when using 3m 77 Spray Adhesive and OC 705 rigid fiberglas. I am using baffles in 3 of 4 corners of my drum booth. Each baffle is constructed of 1/2" Homosote with OC 703 2" thick rigid fiberglas glued with 3M 77 Spray Adhesive. Apparently the spray glue IS NOT sufficient to hold a 2' x 4' 703 panel to the homosote. The FIX I am using my strapping machine (normally used to strap postal trays or bundles of magazines... This seems to provide just enough holding power so that the 703 panels won't fall down over time. Glad I found out about this little boo boo before I covered the baffles with cloth panels.