3M(TM) Scotch-Weld(TM) Instant Adhesive CA5, 1 oz bottle, 12 per case Bulk One-Part, High Strength, Slower-Setting, Cyanoacrylate Adhesive Cures at Room Temperature. High Viscosity, Gap Filling for Bonding Rough or Uneven Surfaces. Its relatively high viscosity is especially useful where some gap filling is desired for bonding rough or uneven surfaces. Its longer set rate allows more time for proper alignment of parts to be bonded.