Loctite 242 Blue Medium Strength Threadlocker 10 mL
- Loctite 242 is a blue medium strength anaerobic threadlocker from Henkel, intended to lock and seal threaded fasteners while still allowing removal with standard hand tools.
- Features:
- Thixotropic formulation reduces migration after application
- Medium strength enables disassembly with hand tools without damaging threads
- Cures in absence of air between close-fitting metal surfaces
- Compatible with passive metals like stainless, plated parts (activator may accelerate cure)
- Serviceable within –54 °C to +149 °C for many mechanical environments
- Specifications:
- Manufacturer: Henkel
- Part Number: 242
- Color: Blue liquid
- Cure Type: Anaerobic
- Viscosity: 800 to 1,600 mPa·s at 25 °C, 20 rpm
- Fixture Time: 5 to 20 minutes
- Temperature Range: –54 °C to +149 °C
- Breakaway Torque (3/8-16 steel, 1 hour): 5.6 to 17 N·m
- Prevailing Torque (same): 1.7 to 6.8 N·m
- Compatible Substrates: Steel, stainless steel, brass, plated metals
- Disassembly Method: Hand tools or localized heat (~ 250 °C) if necessary
- The Loctite 242 Threadlocker can also be referred to as blue threadlocker medium strength, Loctite anaerobic adhesive, removable thread sealant, vibration resistant thread adhesive, and serviceable threadlocker.
Loctite 242 is a dependable industrial adhesive used in machinery, automotive, and general mechanical applications where parts must hold under vibration yet remain serviceable.
Q: Will Loctite 242 work on stainless steel fasteners?
A: Yes. It cures on passive metals such as stainless; for two inactive surfaces, use of an activator can speed cure.
Q: How do I remove a fastener bonded with Loctite 242?
A: Use standard hand tools. If it is stubborn, apply localized heat (~ 250 °C) and then disassemble while hot.
Q: What is the fixture time?
A: About 5 to 20 minutes depending on metal type and conditions; full cure in about 24 hours.
