LOCTITE® 641

Features and Benefits

This medium-strength retaining compound is designed for bonding cylindrical fitting parts, particularly where regular servicing is needed.
When you’re working with parts that need regular dismantling – retention of bearings on shafts and in housings, for example – try LOCTITE® 641. This medium-strength anaerobic retaining compound cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration.
  • Medium strength for ease of disassembly
  • Ideal for parts that need frequent servicing
  • Secondary cure with activator
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Documents and Downloads

Safety Data Sheets and RoHs
LOCTITE® 641, 50 ml Bottle 234863 en-FR
IDH: 234863
EAN: 5010266641416

Size Case: 50 ml Bottle

LOCTITE® 641, 250 ml Bottle 234866 en-FR
IDH: 234866
EAN: 5010266641706

Size Case: 250 ml Bottle

LOCTITE® 641, 10 ml Bottle 267442 en-FR
IDH: 267442
EAN: 4058093026755

Size Case: 10 ml Bottle

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Technical Information

Color Yellow
Fixture time 20.0 min.
Gap fill 0.15 mm
Key characteristics Strength: medium strength
Operating temperature -55.0 - 150.0 °C (-65.0 - 300.0 °F )
Recommended for use with Metal: steel
Shear strength, Steel 12.0 N/mm² (1700.0 psi )
Viscosity 600.0 mPa·s (cP)