Loctite High-Strength 272 Red Threadlocker — 36 ml High-Temp, Oil-Tolerant Bond

Loctite 37480 (272) Red High-Temperature Threadlocker is a high-strength anaerobic adhesive formulated to lock and seal metal fasteners in heavy-duty, high-heat applications while remaining removable with heat.

Designed for professional engine builders, repair shops, and technicians, this 36 ml Loctite threadlocker delivers OEM-grade performance on a wide range of metals. It bonds reliably to both active and passive substrates—such as steel, stainless steel, aluminum, and plated surfaces—while tolerating oils and contaminants better than many conventional formulations. Engineered to resist shock, vibration, and harsh chemicals, it secures critical components yet can be released when needed using localized heat and standard hand tools.

What kinds of fasteners and assemblies is this product meant for?

The Loctite 272 Red formula is optimized for heavy-duty screws, studs, and bolts where high strength and temperature resistance are required. Typical uses include camshaft sprocket bolts, crankshaft bolts, idler bearings, and other drivetrain or engine fasteners up to 1-1/2" (38 mm).

• Suitable for fasteners up to 1-1/2" (38 mm) in diameter
• Commonly used on camshaft and crankshaft applications
• Works on bearings, pulleys, and high-load engine parts
• Compatible with a variety of metal substrates, including passive metals

How quickly does it cure and reach full strength?

This threadlocker begins setting quickly to help hold assemblies during rework and assembly operations. Initial handling strength develops within about one hour, while the adhesive achieves maximum bond strength after a full 24 hours under typical conditions.

• Initial set time: approximately 1 hour
• Full cure: approximately 24 hours for maximum strength
• Curing speed can vary with temperature, gap size, and substrate

Can it be used on oily or plated surfaces and how is it removed?

The formula is engineered for excellent oil tolerance, so it performs reliably on parts with residual lubricants or plated finishes. When disassembly is required, bonded fasteners can be freed using localized heat and routine hand tools—no exotic extraction methods necessary.

• Designed for passive metals like stainless steel and aluminum
• Superior tolerance to oils and surface contaminants
• Removal method: apply localized heat then use standard hand tools

What environmental and mechanical stresses can it withstand?

Loctite 272 is built to handle strenuous operating environments common in automotive and industrial settings. It resists high temperatures, repeated shock and vibration, and exposure to many aggressive chemicals, making it a dependable choice for critical joints.

• High-temperature resistance for engine and industrial use
• Durable under heavy shock and continuous vibration
• Resilient against common automotive fluids and chemicals

Who this product is for: Professionals and experienced DIYers who work on engines, transmissions, or any heavy-duty metal assemblies where a permanent, high-temperature threadlocking solution is needed. Choose Loctite 37480 272 when you require OEM-quality retention for critical fasteners but still want the option to remove parts later with heat and basic tools.