Lube Adhesive & Engineering Co.

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LOCTITE® 648™ provides the following product characteristics: Technology Acrylic Chemical Type Urethane methacrylate Appearance (uncured) Green liquidLMS Fluorescence Positive under UV lightLMS Components One component - requires no mixing Viscosity Low Cure Anaerobic Secondary Cure Activator Application Retaining Strength High This Technical Data Sheet is valid for LOCTITE® 648™ manufactured from the dates outlined in the "Manufacturing Date Reference" section.LOCTITE® 648™ is designed for the bonding of cylindricalfitting parts. 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 holding gears and sprockets onto gearbox shafts and rotors on electric motor shafts. LOCTITE® 648™ provides robust curing performance. It not only works on active metals (e.g. mild steel) but also on passive substrates such as stainless steel and plated surfaces. The product offers high temperature performance and oil tolerance. It tolerates minor surface contaminations from various oils, such as cutting, lubrication, anti-corrosion and protection fluids. TYPICAL PROPERTIES OF UNCURED MATERIAL Specific Gravity @ 25 °C 1.1 Viscosity, Brookfield - RVT, 25 °C, mPa·s (cP): Spindle 2, speed 20 rpm 400 to 600LMS Viscosity, Cone & Plate, 25 °C, mPa·s (cP): Shear rate 129 s -1 400 to 600 Flash Point - See SDSTYPICAL CURING PERFORMANCECure 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.The rate of cure will depend on the bondline gap. The followinggraph shows shear strength developed with time on steel pins and collars at different controlled gaps and tested according to ISO 10123.Cure Speed vs. TemperatureThe rate of cure will depend on the temperature. The graph below shows the shear strength developed with time at different temperatures on steel pins and collars and tested according to ISO 10123.