Loctite retaining compounds loctite 1546952 loctite 6300 has been designed for the bonding of cylindrical fitting parts it cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage due to shock and vibration it is also approved for use on bearings loctite 6300s key differentiator is the white material safety data sheet it carries no hazard symbols risk or safety phrases and does not contain any declarable carcinogens mutagens o