FM® 73 film adhesive is a toughened, general purpose aerospace epoxy designed to provide excellent structural performance from -67°F to 180°F (-55°C to 82°C). FM 73 film adhesive is formulated to provide outstanding durability in bonding metals and is also suitable for boding many structural composite systems. Extensive testing has proven that FM 73 adhesive meets stringent environmental resistance and bonding durability requirements. To achieve maximum environmental resistance and bonding durability the use of BR® 127 corrosion inhibiting primer is recommended in bonding metallic components.