Permabond toughen epoxy 400ml 2:1 cartridge & nozzles #ET540Permabond ET540 is a two part, 2: 1 mixable, semi flexible toughened no slump epoxy adhesive with good adhesion to a variety of substrates such as wood, metal, ceramics and some plastics and composites. Permabond ET540 forms tough bonds providing high peel reistance and high sheer strength coupled with excellent resistance to high temperatures. Features and Benefits Adhesion to a wide variety of substrates Full cure at room temperature Easy to apply