Loctite 277 Threadlocker


Loctite 277 Threadlocker

Loctite 277 is a red, high strength threadlocking adhesive. Suitable for locking and sealing large bolts and studs.


  • Prevents loosening and leakage from shock & vibration: It fills all gaps between the mating threads and cures into a hard thermoset plastic that strengthens the assembly against shocks and seals the threads.
  • High viscosity product: The high viscosity of the product makes it ideal for applications where migration of adhesive must be prevented.
  • Fluorescent: It has a characteristic red colour that fluoresces under UV light. This helps during service to detect as to whether or not the product had been applied.
  • It has a fixture time on steel of 30 minutes, brass for 25 minutes and stainless steel for 270 minutes.
  • Localized heat may be required to weaken the bonds before disassembly.


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