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PRODUCT DESCRIPTION LOCTITE® 5452™ provides the following product characteristics: Technology Acrylic Chemical Type Methacrylate ester Appearance (uncured) Purple liquidLMS Components One component - requires no mixing Viscosity Medium Cure Anaerobic Secondary Cure Activator Application Thread sealing LOCTITE® 5452™ is designed for threaded fittings commonly found in hydraulic and pneumatic systems. The thixotropic nature makes LOCTITE® 5452™ suitable for large diameter pipes. This material is useful with dry seal fitings such as O-Ring boss style connectors, by preventing the rotation that ultimately leads to leakage. LOCTITE® 5452™ can be used as a sealant on mating surfaces of flare style fittings to seal scratches and surface imperfections. It contains no fillers or particles that can interfere with a hydraulic system. TYPICAL PROPERTIES OF UNCURED MATERIAL Specific Gravity @ 25 °C 1.15 Viscosity, Brookfield - RVT, 25 °C, mPa·s (cP): Spindle 6, speed 20 rpm 15,000 to 40,000LMS Viscosity, Cone & Plate, 25 °C, mPa·s (cP): Physica MK22, Cone CP50-1, shear rate 20 s -1 2,500 to 6,500LMS Flash Point - See SDS TYPICAL CURING PERFORMANCE Cure Speed vs. Substrate The rate of cure will depend on the substrate used. The graph below shows the breakloose strength developed with time on 3/8 x 16 steel nuts & bolts compared to different materials and tested according to ISO 10964, pretorqued to 5 N·m. % of Full Strength on Steel Cure Time 100 80 60 40 20 0 0 5min 10min 30min 1h 3h 6h 24h 72h Steel Brass Zinc dichromate Stainless steel Cure Speed vs. Activator Where cure speed is unacceptably long, or large gaps are present, applying activator to the surface will improve cure speed. The graph below shows the breakloose strength developed with time using Activator SF 7471™ and SF 7649™ on 3/8 x 16 zinc dichromate nuts and bolts and tested according to ISO 10964, pretorqued to 5 N·m. % of Full Strength on Steel Cure Time 100 75 50 25 0 1min 5min 10min 30min 1h 3h 6h 24h Activator SF 7471™ Activator SF 7649™ No activator TYPICAL PERFORMANCE OF CURED MATERIAL Adhesive Properties After 1 hour @ 22 °C Breakaway Torque, ISO 10964, Unseated: 3/8 x 16 steel nuts and bolts (degreased) N·m 0.9 (lb.in.) (8)