Loctite® 406 Cyanoacrylate Adhesive Loctite The Loctite® 406 Cyanoacrylate Adhesive is a high-performance instant glue specifically formulated for fast bonding of plastics, rubbers, and industrial composite materials. Its formulation provides excellent adhesion on hard-to-bond surfaces and delivers near-instant curing while ensuring durable mechanical strength. Ideal for fabrication workshops, industrial maintenance, and precision repairs, it enables reliable, fast, and professional assembly. Learn more