Loctite LC1918981 638 is a high-strength retaining compound specifically engineered for bonding cylindrical fitting parts, particularly where dynamic loads or cyclic stresses are present. This 10ml bottle provides excellent performance on both active and inactive metals, and it tolerates minor surface contamination from industrial oils. It offers a fast cure and is ideal for retaining gears, pulleys, and similar components onto shafts, ensuring maximum strength and reliability in demanding applications. The compound is designed to fill gaps up to 0.25 mm and has a service temperature range of -55 to +180 °C.