Songhan Plastic Technology Co.,Ltd.

Loctite® 641 Controlled Strength Retaining Compound

Category Polymer , Adhesive , Thermoset
Manufacturer Loctite
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Loctite® 641 Controlled Strength Retaining Compound.pdf
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Material Notes:
RetainersLoctite Corporation, the pioneer of anaerobic adhesives, has applied this technology to create retaining compounds that increase the shear strength of cylindrical, non-threaded assemblies. Finding wide acceptance as a standard method for assembling press and slip-fitted parts, Loctite® Retaining Compounds fill the "inner space" between components and cure to form a strong precision assembly. Formulated in a selection of viscosities, gap filling ability, flexibility and strength characteristics, Loctite® Retaining Compounds can be applied with automatic process equipment or dispensed manually.Loctite® 641 Controlled Strength Retaining CompoundA controlled strength retaining compound that is ideal for cylindrical parts that require disassembly. Recommended for maximum diameter clearance of 0.008". Fixtures in 10 - 30 minutes. Recommended Primer: 7649 (N).Typical Use: Medium strength for removable bearings
Physical Properties Metric English Comments
Density 1.07 g/cc
0.0387 lb/in³
Viscosity 525 - 1950 cP
525 - 1950 cP
Mechanical Properties Metric English Comments
Adhesive Bond Strength 11.7 MPa
1700 psi
Steel/Steel; Varies with substrates
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 149 °C
300 °F
Minimum Service Temperature, Air -53.9 °C
-65.0 °F
Processing Properties Metric English Comments
Cure Time 30.0 min
0.500 hour
1440 min

@Temperature 25.0 °C
24.0 hour

@Temperature 77.0 °F
Full Cure; Steel
Descriptive Properties Value Comments
Color Yellow
Gap Fill 0.008 in.
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