K & R S-320 E-Z Bond Thick Big Gap Filling Instant Glue, 2 oz Bottle Grade: Thin - Med - Thick Viscosity: 5cps - 100cps - 700cps - See Comments Curing Speed: Thin 3 sec - Med 15 sec - Thick 45 sec Type: Ethyl Cyanoacrylate Exellent penetrating capabilities. Bond excellent on thght fitting joints for most materials