3M™ Scotch-Weld™ Threadlocker TL43 is an oil tolerant, general purpose, medium torque removal threadlocker. Blue medium torque removal. Medium viscosity. Oil tolerant. Prevents corrosion, vibration and provides shock resistance. Appliance, general industrial, construction, transportation, maintenance, repair, heavy machinery, aerospace and agricultural equipment. Locking, vibration dampening, threadlocking, sealing, adhering, gluing and bonding.