Loctite® 272 is a high-strength, high-temperature-resistant 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® 272 is a one-component, anaerobic adhesive formulated for the permanent locking and sealing of large threaded fasteners. Its medium 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® 272 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 232°C, ensuring long-term reliability in demanding environments.
Colour: Red
Viscosity: 4,000 to 15,000 mPa·s at 25°C
Breakaway Torque: 23 Nm (M10 steel bolts)
Prevail Torque: 25 Nm (M10 steel bolts)
Fixture Time: 40 minutes on steel
Service Temperature Range: -55°C to +232°C
Specific Gravity: 1.11
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
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 232°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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