LOCTITE 641

Retaining Compound - medium strength. If disassembly is required. Ideal for parts that need subsequent dismantling.

LOCTITE® 641 is designed for the bonding of cylindrical fitting parts, particularly where disassembly is required for servicing operations. The product cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration. Ideal for parts that need subsequent dismantling, i.e. retention of bearings on shafts and in housings.


Your benefits

  • Ideal for parts that need subsequent dismantling, i.e. retention of bearings on shafts and in housings

Applications Close Fitting / Press Fit
For Metal & Plastic Parts
For Metal Parts
For Plastic Parts
General Purpose, Medium Strength
Loose Fitting / Slip Fit
Agency Approvals / Specifications CFIA Listed
Color Yellow
Cure Type Anaerobic Cure
Diametrical Clearance (Maximum) (in.) 0.008
Diametrical Clearance (Maximum) (mm) 0.1
Fixture Time 20 min.
Full Cure Temperature (°C) 25
Full Cure Temperature (°F) 77
Full Cure Time 24 hr.
Gap Fill (in.) 0.008
Key Characteristics Strength: Medium Strength, Thixotropic, Disassembly: Easy Disassembly
Shear Strength, Steel (psi) 1700
Specific Gravity (g/l @ 25°C) 1.07
Temperature Range (°C) -54 to 149
Temperature Range (°F) -65 to 300
Viscosity Range (Brookfield mPa.s (cP)) 525 to 1950
Viscosity Temperature (°C) 25
Viscosity Temperature (°F) 77