Nu-Calgon 4289-05 Refrigerant Sealant 10ml

 NuLock  (4289-05) is fast curing, anaerobic thread locking formulation for bonding and sealing threads for refrigerant systems. An anaerobic based product remains liquid until isolated from oxygen with metal contact in fitting threads. To cure, the product requires lack of oxygen in close contact with metal surfaces – its timing depends on the metal alloy. The process results in a chemical resistive cross-link polymer with great adhesion to metals that provides both a thread sealant and locking – depending on application. This specific formulation provides optimum strength and chemical resistance, plus highly resistant to heat and vibrations making it the recommended formulation for refrigerant systems.

NuLock formulation 4289-02/-05 is a refrigerant thread sealant and locking formulation particularly suited for metal fasteners in refrigerant systems. Use this formulation in other applications where maximum strength and chemical resistance is desired. Ideal for sealing and locking of flare fittings used in refrigeration and ductless air conditioning systems. Use NuLock on metal pipe threaded fittings, compression fittings or other fasteners such as bolt/nut assemblies, screws and threaded metal studs. For metal fasteners up to two inches in diameter. Product prevents rusting of threads. A higher strength formulation, use standard hand tools for fastener removal after product cure. NuLock is NOT for use on plastic parts or for oxygen-rich systems or as a sealant for strong oxidizing materials. Temperature range is -65°F to 300°F. Handling time is 10+ minutes, functional cure 2-4hours and full cure is 24 hours.

• For use to seal threaded metal fasteners
• Locks fastener threads to prevent loosening from vibration
• Ideal for metal pipe thread, flare, and compression fittings
• Ideal for thread locking bolt/nut applications, screws and studs
• Fast curing red colored anaerobic formulation 
• Quick and easy to apply 
• Protects threads from rusting 
• Excellent chemical resistance
• Superb strength – can be removed with hand tools

Refrigerant Sealing Literature

Product Bulletin

Application Bulletin

Safety Literature