Loctite 272 – Threadlocker

Loctite 272 is a high-strength, high-temperature anaerobic threadlocker designed to permanently lock and seal threaded metal fasteners exposed to extreme operating conditions. It cures in the absence of air when confined between close-fitting metal threads, creating a durable bond that prevents loosening caused by vibration, shock, thermal cycling, and heavy mechanical loads. It also protects threads against corrosion, moisture, and fluid leakage, ensuring long-term reliability in demanding industrial and automotive applications.

Engineered for high-temperature service, Loctite 272 is ideal for securing bolts, nuts, studs, and threaded assemblies operating in engines, exhaust systems, pumps, compressors, gearboxes, and heavy industrial equipment. It provides excellent performance on steel, stainless steel, and other metal fasteners while maintaining its locking strength under continuous exposure to elevated temperatures.

Once cured, Loctite 272 forms a permanent bond that typically requires localized heat and appropriate tools for disassembly. Its outstanding resistance to oils, fuels, hydraulic fluids, coolants, and many industrial chemicals makes it suitable for use in harsh operating environments.

Key Features

• High-strength anaerobic threadlocker
• Designed for high-temperature applications
• Permanently locks and seals threaded metal fasteners
• Prevents loosening due to vibration, shock, and thermal cycling
• Excellent resistance to oils, fuels, hydraulic fluids, coolants, and chemicals
• Protects threads against corrosion and leakage
• Suitable for steel, stainless steel, and other metal fasteners
• Ideal for heavy-duty industrial and automotive applications

Typical Applications

• Engine and exhaust system fasteners
• Gearboxes and transmissions
• Pumps and compressors
• Heavy machinery and construction equipment
• Stud bolts and structural fasteners
• Industrial motors and processing equipment
• Power generation and manufacturing plants

Benefits

• Delivers permanent, high-strength fastening
• Maintains locking performance at elevated temperatures
• Improves equipment reliability and safety
• Reduces maintenance costs and unexpected downtime
• Extends the service life of threaded assemblies in harsh environments

Loctite 272 is a trusted threadlocking solution for critical applications requiring exceptional holding strength, high-temperature resistance, and long-lasting protection against vibration and loosening, making it ideal for industrial, automotive, and heavy equipment maintenance.