Nu-Calgon 4289-02 Refrigerant Thread Sealant 50ml

NuLock (p/n: 4289-02 & 4289-05) are 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.

• 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 moved with hand tools

Application 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. Other applications of NuLock include 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. 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.

Directions For professional use only, use personal protection equipment as required. Surfaces should be dry, clean, and free of contamination. Never use NuLock on plastic fittings – only metal mechanical connections. Apply a generous 360-degree bead of NuLock in the leading threads of the metal male fitting, less the leading thread. Apply NuLock in sufficient quantity to fill threads to prevent a product void when connecting mating fasteners. For bigger connections, adjust the amount product use to fill thread volume accordingly, including applying a bead of NuLock on the female threads as well for best sealing/ locking results.

Refrigerant Sealant Literature

Refrigerant Sealant Application Bulletin 

Safety Literature