Henkel Loctite 272 High-Strength Threadlocker Red 50 mL — High-Temp, Permanent

Loctite 272 is a high-strength, high-temperature anaerobic threadlocker in a 50 mL bottle formulated to permanently secure threaded fasteners that need resistance to vibration, heat, and heavy loads.

This professional-grade Loctite formulation (Henkel) is designed for locking and sealing metal fasteners where a strong, enduring bond is required. It cures quickly when confined between close-fitting metal surfaces and provides a dependable solution for assemblies that may see elevated temperatures or heavy service. Disassembly requires heat and the use of appropriate hand tools, so it’s intended for permanent or long-term applications.

What types of fasteners and materials is Loctite 272 suitable for?

Loctite 272 bonds best on metal-to-metal threaded assemblies and works on a wide range of commonly used fasteners, including new, clean, and previously assembled parts. It is formulated for high-strength retention where vibration or heat might otherwise loosen joints.

• Steel, stainless steel, and plated fasteners
• Ideal for bolts, studs, nuts, and set screws
• Effective on “as received” (pre-treated) fasteners
• Not intended for large gaps or non-metal substrates

How fast does it cure and what conditions affect cure time?

Cure is initiated when the adhesive is confined between metal surfaces in the absence of air; cure speed varies with temperature, metal type, and gap size. At room temperature the product becomes usefully functional quickly, while full cure strength develops over hours.

• Faster cure on active metals like iron and copper alloys
• Slower cure on passive metals (e.g., stainless steel) or large gaps
• Higher temperatures accelerate setting and final strength
• Assembly should be aligned immediately; excess should be wiped before cure

How do I remove or disassemble parts secured with Loctite 272?

Loctite 272 is a high-strength grade, so removal requires heat and mechanical force—this is intentional for applications where permanence and safety are priorities. Apply controlled heat and use proper tools to prevent damage to the components.

• Heat the joint to weaken the cured polymer before attempting removal
• Use wrenches or impact tools appropriate to the fastener size and torque
• Wear protective equipment when heating or applying force
• Expect longer removal time on tight or rusted assemblies

What size, packaging, and handling details should I know?

This product comes in a 50 mL bottle with a precision applicator ideal for workshop or industrial use. The bottle dimensions make it easy to store and apply in confined workspaces; follow safety data and local disposal rules for adhesives.

• Net volume: 50 mL in a convenient bottle
• Color: red (identifies high-strength grade)
• Physical size: approximately 6" height × 1" length × 2.5" width
• Keep away from heat sources and store capped in a cool, dry place

Who this is for: Loctite 272 is aimed at mechanics, industrial maintenance teams, fabricators, and serious DIYers who require a permanent, high-strength threadlock for metal fasteners exposed to heat, vibration, or heavy loads. If you need an easily removable bond, consider lower-strength grades; if you need long-term reliability on metal threaded joints and accept that disassembly will demand heat and tools, this formula is appropriate.