Bondloc B638 Retainer is designed to give high strength retention under cyclic loading. It can retain its full strength and not suffer fatigue under load stress. It is a cylindrical parts supplement, suited to structural components such as cylindrical parts under dynamic load, keys, splines, even structural tubing with close tolerance fit. Specifications: Resin: Urethane Acrylate.Colour: Green.Fixture Speed No Activator: 5 mins.Fixture Speed With Activator: 85C.Shelf Life: 12 months min.Specific Gravity: 1.08.Max Operating Temperature: -55C to + 150C. Cured Performance: Full Cure Time: 24 hours.Static shear strength: 30 N/mm.