Loctite 641 Retaining Compound


Loctite 641 Retaining Compound

Loctite 641 is designed for the bonding of cylindrical fitting parts, particularly where disassembly is required for servicing operations. Ideal for parts that need subsequent dismantling, i.e. retention of bearings on shafts and in housings.


  • Prevents loosening: It fills all gaps between the cylindrical components and cures into a hard thermoset plastic. This unitizes the assembly and prevents loosening and leakage from shock and vibration.
  • Augments press fit.
  • Recommended for parts that will need subsequent dismantling, eg retention of bearings on shaft and into housing.
  • Prevents loosening and leakage from shock and vibration.


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