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LOCTITE 660 is a one-component, high viscosity anaerobic retaining compound formulated for bonding and repairing cylindrical metal parts. It cures when air is excluded between mating metal surfaces and is engineered for larger bond gaps up to 0.50 mm.
Restores worn shafts and bearing housings.
Reduces need for expensive part replacement.
Prevents loosening under vibration.
Seals against leakage in cylindrical assemblies.
Reliable performance in maintenance applications.
Supports long-term assembly durability.
LOCTITE 660 is a high strength anaerobic retaining compound designed for restoring and securing worn cylindrical metal assemblies. Based on acrylic technology with a urethane methacrylate chemical base, this one-component adhesive cures in the absence of air when confined between close-fitting metal surfaces.
This metallic gray, high viscosity paste is specially developed for applications where bond gaps can reach up to 0.50 mm. It is ideal for repairing worn shafts, spun bearings, and damaged keyways without the need for machining or part replacement. Once cured, it forms a durable bond that helps prevent loosening and leakage caused by shock and vibration.
Acrylic technology with urethane methacrylate chemistry.
Anaerobic curing system.
One-component, no mixing required.
High viscosity metallic gray paste.
Designed for gaps up to 0.50 mm.
High compressive shear strength.
Resistant to shock and vibration.
Can be used with activator for faster curing.
