Loctite 272 Red High Temperature Threadlocker 36 ml — OEM-strength, oil-tolerant anaerobic adhesive

Loctite 272 Red High Temperature Threadlocker is a 36 ml anaerobic adhesive engineered to lock and seal metal fasteners in high-heat, high-vibration environments while allowing removal later with heat and hand tools.

This high-temperature threadlocker from Loctite delivers a heavy-duty, OEM-grade bond for metal fasteners found in engines and industrial equipment. Formulated to cure anaerobically between metal surfaces, it tolerates oil-contaminated threads and passive metals like stainless steel and aluminum. The quick-setting formula starts to develop handling strength in about an hour and achieves full cure in 24 hours, making it suitable for fast turnaround repairs or assembly work.

What kinds of fasteners and applications is this threadlocker best for?

Designed for demanding mechanical assemblies, Loctite 272 is intended for bolts and studs exposed to extreme heat, shock, and chemical environments. It is commonly used on camshaft and crankshaft fasteners, idler bearings, and similar high-stress locations where a permanent, vibration-resistant bond is required.

• Suitable for fasteners up to 1-1/2" (38 mm) in diameter
• Ideal for engine components like camshaft sprockets and crankshafts
• Works on passive metals and plated surfaces without special primers
• Resistant to oil, fuels, and many industrial fluids

How quickly does it set and reach full strength?

The product offers a fast initial set followed by a complete cure to achieve maximum strength. You can expect basic handling strength within about one hour under typical conditions, with full cure and rated performance reached at 24 hours.

• Handling strength: roughly 1 hour under standard ambient conditions
• Maximum cure: around 24 hours for complete bond development
• Cure speed varies with gap size, temperature, and substrate chemistry
• Best results on clean, mated metal surfaces for anaerobic curing

Can I remove parts secured with this threadlocker later?

Yes—Loctite 272 is engineered for permanent locking with controlled removability. Fasteners locked with this high-strength formula can be released by applying localized heat and standard hand tools, allowing disassembly or maintenance when needed.

• Removal method: apply heat to the joint to soften the cured adhesive
• Use common hand tools to break the bond after heating
• Designed for serviceable assemblies where future removal is possible
• Not intended for applications requiring frequent removal without reheating

Which metals and surface conditions does it bond well to?

Loctite 272 performs reliably on a wide range of metal substrates, including those that are chemically passive. It offers enhanced oil tolerance compared to many threadlockers, which helps when cleaning to bare metal is difficult or when residual lubricants are present.

• Effective on steel, stainless steel, aluminum, and plated metals
• Works on passive surfaces without special activators in many cases
• Oil-tolerant formulation improves bonding on lightly contaminated threads
• Best practice: remove heavy contaminants for optimal cure and strength

Who is this for: Loctite 272 Red High Temperature Threadlocker is aimed at professional mechanics, engine builders, industrial maintenance technicians, and serious DIYers who need a dependable, high-strength threadlocker for metal fasteners exposed to heat, vibration, and chemicals. The 36 ml bottle is convenient for shop use and targeted repairs where OEM-level performance and later serviceability are required.