The other option is more epoxy to bond the sheet to the plywood similar to a boat deck repair.
Ahesive bonding fiberglass sheets to plywood.
Epoxy has the advantage of spreading across the two surfaces and filling in gaps that are visible between the fiberglass and wood.
Once the glue dries i will join the surfaces together.
In this video we are bonding some marine ply reinforcements to the raised seat pl.
Epoxy will glue almost any materials together and is the adhesive of choice when gluing fiberglass to wood.
3m fastbond contact adhesive 30nf is a low odor water based adhesive designed to have high strength high coverage long bonding range and good heat resistance.
This classic adhesive has proven to bond combinations of most foamed plastics plastic laminate wood plywood wood veneer and canvas.
The plan is to first glue the thin fiberglass panel to the 1 8 plywood and then attach the sandwiched panel to the aluminum frame.
I will spray the glue to the surfaces.
Lay the foam panel face down.
Always mix the epoxy resin and hardener in the correct proportions.
Pull the caulk gun trigger and squeeze a long bead of glue in a zigzag pattern on the back of the insulation leaving about 1 inch free of adhesive on the edges.
Bonding it with epoxy may be overkill.