3M(TM) Scotch-Weld(TM) Instant Adhesive CA5, 1 lb bottle, 1 per case One-Part, High Strength, Slower-Setting, Cyanoacrylate Adhesive Cures at Room Temperature. High Viscosity, Gap Filling for Bonding Rough or Uneven Surfaces. 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.