Secure. Reliable. Built for Performance.
When it comes to threaded assemblies, reliability is everything. Loctite® delivers industry-leading solutions with its range of thread lockers and sealants—trusted for preventing loosening, sealing leaks, and protecting against vibration, shock, and harsh environments. From automotive and aerospace to plumbing, agriculture, and manufacturing, Loctite products are engineered to perform and resist chemicals, temperature variations, and corrosion.
Why Choose Loctite 565?
Loctite® 565 Thread Sealant is a white to off-white, low-strength, high-viscosity, 1-part acrylic (methacrylate ester) sealant designed specifically for metal pipes and fittings. It cures anaerobically—hardening in the absence of air between close-fitting metal surfaces—to form a secure, leak-proof seal that stands up to shock and vibration.
- Secure sealing: Locks and seals metal pipes and fittings for dependable performance.
- Leak prevention: Helps stop fluid or gas leaks caused by vibration and shock.
- Controlled strength: Low-strength formulation allows service disassembly with standard hand tools.
Ideal For
- Plumbing installations
- Hydraulic and pneumatic systems
- Industrial machinery
- Automotive maintenance and repair
Quick Specs
- Color: White to off-white
- Chemistry: Methacrylate ester (acrylic)
- Cure method: Anaerobic (in the absence of air between metal surfaces)
- Strength: Low
- Viscosity: High
- Format: 1-part
- Size: 50 mL
















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