Lube Adhesive & Engineering Co.

ABOVE PRICE IS INCLUDING GST 18%.
PRODUCT DESCRIPTION LOCTITE® 641 provides the following product characteristics: Technology Acrylic Chemical Type Methacrylate ester Appearance (uncured) Yellow liquidLMS Fluorescence Negative Components One component - requires no mixing Viscosity Medium Cure Anaerobic Secondary Cure Activator Application Retaining Strength Medium LOCTITE® 641 is designed for the bonding of cylindrical fitting parts, particularly where disassembly is required for service operations. The product cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. Typical applications include retention of bearings onto shafts and into housings.
TYPICAL PROPERTIES OF UNCURED MATERIAL Specific Gravity @ 25 °C 1.07 Flash Point - See SDS Viscosity, Brookfield - RVT, 25 °C, mPa·s (cP): Spindle 2, speed 2.5 rpm, 1,215 to 2,750LMS Spindle 2, speed 20 rpm 400 to 800LMS Viscosity, EN 12092 - MV, 25 °C, after 180 s, mPa·s (cP): Shear rate 277 s -1 90 to 180 TYPICAL CURING PERFORMANCE Cure Speed vs. Substrate The rate of cure will depend on the substrate used. The graph below shows the shear strength developed with time on steel pins and collars compared to different materials and tested according to ISO 10123.TYPICAL PROPERTIES OF CURED MATERIAL Physical Properties: Coefficient of Thermal Expansion, ISO 11359-2, K -1 80×10-6 Coefficient of Thermal Conductivity, ISO 8302, W/(m·K) 0.1 Specific Heat, kJ/(kg·K) 0.3 TYPICAL PERFORMANCE OF CURED MATERIAL Adhesive Properties After 24 hours @ 22 °C Compressive Shear Strength, ISO 10123: Steel pins and collars N/mm² ≥6.5LMS (psi) (940) TYPICAL ENVIRONMENTAL RESISTANCE Cured for 1 week @ 22 °C Compressive Shear Strength, ISO 10123: Steel pins and collars5. For Shrink Fitted Assemblies the adhesive should be coated onto the pin, the collar should then be heated to create sufficient clearance for free assembly. 6. Parts should not be disturbed until sufficient handling strength is achieved. For Disassembly 1. Apply localized heat to the assembly to approximately 250 °C. Disassemble while hot. For Cleanup 1. Cured product can be removed with a combination of soaking in a Loctite solvent and mechanical abrasion such as a wire brush.

Additional Information:

• Delivery Time: READY STOCK
• Packaging Details: 50 ML & 250 ML