LOCTITE EA 9658 AERO LOCTITE EA 9658 AERO is a nacelle film adhesive. It combines high-temperature strength controlled flow to minimize hole blockage and flash/flow clean up in the shop, and features approximately three times the toughness of LOCTITE EA 9689 AERO. It is ideal for metal, composite and honeycomb bonding, especially where you need continuous exposure to temperatures up to 177°C (350°F).