3M™ Automix® Panel Bonding Adhesive is a two-part epoxy used to bond steel, aluminum, sheet molded compound (SMC), and fibreglass reinforced polyester (FRP). The primary use is to replace quarter panels, roofs, box sides, van sides, utility vehicle sides and door skins. This adhesive provides extended work time but can be rapidly cured with heat. Use with 3M™ Premium Manual Applicator, 08117, and 3M™ Static Mixing Nozzle, 08193.The 3M Panel Bonding Adhesive 08115 is ideal for replacing quarter panels, roofs, box sides, van sides, utility vehicle sides and door skins. This is a two-part epoxy used to bond steel, aluminum, SMC, and FRP (traditional fibreglass). It is designed for use on outer body panels only, and is not appropriate for use on structural components such as pillars, frame rails, core supports, or rocker panels, on unibody vehicles. This adhesive cures on demand with addition of heat, and the glass beads work as built-in spacers for optimum bond line thickness. The 3M Panel Bonding Adhesive has corrosion inhibiting ability, and retains an excellent shelf life, either opened or unopened. Using this product helps to eliminate most overhead welding and heat warpage of sheet metal (associated with welding). Work time is two hours at 70F (21C) and one hour at 100F (37C). Handling time is four hours and cure time is 24 hours. There are two recommended applicator guns. They are the MixPac Manual Applicator 08117 or the MixPac eumatic Applicator 09930.