Loctite® 275 is a high-strength, high-viscosity, thixotropic threadlocker designed for the permanent locking and sealing of large threaded fasteners. It cures anaerobically between close-fitting metal surfaces, providing robust resistance to vibration, shock, and thermal cycling. The adhesive is suitable for applications requiring high torque strength and can be disassembled by heating parts to 250°C.
Loctite® 275 is a one-component, anaerobic adhesive formulated for the permanent locking and sealing of large threaded fasteners. Its high viscosity ensures easy application without migration, making it suitable for vertical or overhead assemblies. The product cures in the absence of air between close-fitting metal surfaces, forming a durable bond that resists loosening due to vibration and thermal expansion. Loctite® 275 is particularly effective on less active substrates such as stainless steel and plated surfaces, and it can cure through light coatings of industrial oils and cutting fluids without the need for prior cleaning. The adhesive exhibits high-temperature resistance up to 150°C, ensuring long-term reliability in demanding environments.
Colour: Green
Viscosity: 5,000 to 10,000 mPa·s at 25°C
Breakaway Torque: 25 Nm (M10 steel bolts)
Prevail Torque: 36 Nm (M10 steel bolts)
Fixture Time: 15 minutes on steel, 7 minutes on brass, 180 minutes on stainless steel
Service Temperature Range: -55°C to +150°C
Specific Gravity: 1.1
Fluorescence: Yes, under UV light
Recommended for: Steel, stainless steel, brass, and plated surfaces
Packaging Sizes: 50 ml and 250 ml bottles
Primary Chemistry: Methacrylate ester
High-strength formulation for permanent locking of large threaded fasteners
High viscosity allows for controlled application without migration
Suitable for use on less active substrates like stainless steel and plated surfaces
Fluorescent under UV light for easy inspection
Can be disassembled by heating parts to 250°C
Tolerant of slight contamination from industrial oils
Prevents loosening of large threaded fasteners due to vibration and thermal cycling
Eliminates the need for mechanical locking devices
Seals threads to prevent leakage and corrosion
Reduces maintenance by providing long-term locking and sealing
Enables reliable assembly without the need for prior cleaning of lightly oiled surfaces
Permanent locking of large threaded fasteners in heavy-duty machinery
Securing bolts and studs in engines, gearboxes, and pumps
Preventing loosening of fasteners in vibrating assemblies
Sealing threads to prevent leakage of gases and liquids
Applications requiring high-temperature resistance up to 150°C
Use on less active substrates such as stainless steel and plated surfaces
Suitable for assemblies with light oil contamination without prior cleaning
Maintenance and repair operations in industrial equipment
Automotive and heavy machinery threaded components
Electrical and electronic equipment assemblies
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