3M(TM) Scotch-Weld(TM) Instant Adhesive CA4, 1 lb bottle, 1 per case One-Part, High-Strength, Fast Setting, Multi-Purpose Cyanoacrylate Adhesive Cures at Room Temperature. It is economical to use because generally only drops of adhesive are needed to develop strong bonds to many metals, plastics and rubber. It has particularly good adhesion to most cured rubbers. Meets MIL-A-46050C, Type II, Class 2.