Henry Single-Ply Bonding Adhesive is a high-strength, solvent-based contact adhesive that allows the bonding of Henry EPDM and TPO Membranes to various porous and non-porous substrates. EPDM & TPO Bonding Adhesive is compatible with polyisocyanurate insulation, structural and lightweight concrete, plywood, oriented strand board, wood fiberboard, masonry, and various metal finishes. EPDM & TPO Bonding Adhesive is easily applied with a 9" (288 mm) medium nap roller, creating a strong adhesive bond between the membrane and substrate.