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

Engineered for industrial and professional use, Loctite 272 bonds quickly to most metal substrates and is formulated to cure even on untreated, "as-received" fasteners. The vivid red formula signals permanent locking; removal normally requires heat and hand tools. Packaged in a compact 50 mL bottle, this threadlocker is made in the United States and sized for targeted applications where long-term retention under stress is essential.

What makes Loctite 272 different from general-purpose threadlockers?

Loctite 272 is a high-strength product rated for higher temperatures and greater resistance to vibration than medium- or low-strength grades. It cures anaerobically between metal surfaces, creating a durable polymer that resists shock and loosening. Because of its strength, it is intended for permanent assemblies where controlled disassembly is acceptable.

• High-strength formulation for permanent locking
• High-temperature resistance for demanding environments
• Fast cure on most metals, including untreated fasteners
• Removal requires heat and appropriate hand tools

How should I apply Loctite 272 for reliable results?

Apply a small amount to the clean threads of the male fastener and assemble as usual; the product cures when confined between mating metal surfaces in the absence of air. Wipe away excess before curing begins and allow sufficient time for initial set and full cure based on joint materials and size. For best performance, assemble parts at room temperature and avoid contamination.

• Apply to clean, dry threads only
• Use sparingly—full cure occurs in contact of mating surfaces
• Allow initial set time before loading; full cure varies with gap size
• Use heat and hand tools to disassemble when necessary

Which applications are suitable for a high-strength, red threadlocker?

Loctite 272 is ideal where permanent locking is preferred: structural bolts, heavy machinery, safety-critical assemblies, and components subject to high temperatures or continuous vibration. It is often chosen for industrial maintenance and repair tasks where longevity and resistance to loosening are priorities. Avoid use where frequent adjustment or routine removal is required.

• Heavy equipment and industrial fasteners
• Automotive assemblies exposed to heat and vibration
• Permanent or long-term structural joints
• Applications requiring resistance to shock and corrosion

What are the practical size, packaging, and safety details I should know?

The product is supplied in a 50 mL bottle with dimensions approximately 6" high by 2.5" wide and 1" thick—compact for toolboxes or maintenance carts. The red color identifies it as a high-strength grade. Follow manufacturer safety data sheet guidance for handling, storage, and disposal; keep away from skin and eyes and store in a cool, dry place to preserve effectiveness.

• 50 mL bottle—compact, portable packaging
• Color: red (high-strength indicator)
• Made in the United States
• Heat and hand tools normally required for removal

Who is this for? Loctite 272 is aimed at mechanics, industrial maintenance teams, fabricators, and professionals who need a permanent, high-temperature resistant threadlocker. Choose this product when you require a durable bond that withstands vibration, heat, and demanding service conditions—and where controlled disassembly using heat and tools is acceptable.