Product Overview
Loctite 276 (model: 276), featured as FM32 in our catalog, is a premium green threadlocking adhesive engineered for permanent locking and sealing of threaded fasteners. As a 1-part anaerobic adhesive, it stands out for its high strength and low viscosity, making it a reliable solution across industrial, automotive, and mechanical applications.
Manufactured to meet strict quality standards, this adhesive is designed to address common challenges like fastener loosening, leaks, and corrosion caused by vibration and shock. Its formulation ensures compatibility with a wide range of metals, including steel, brass, stainless steel, and nickel—eliminating the need for material-specific adhesives. With a product code of 3506990000, it’s trusted for both OEM and maintenance scenarios, offering consistent performance even in demanding environments.
Features
Broad Metal Compatibility
Unlike adhesives limited to specific materials, Loctite 276 works seamlessly with all metals, from standard steel and brass to specialized stainless steel and nickel surfaces. This versatility reduces inventory complexity, as one product suffices for diverse fastening tasks.
Rapid Fixture Time
With a fixture time of 3.0 - 5.0 minutes, it minimizes downtime during assembly or repairs. This quick setting reduces reliance on activators, streamlining workflow without compromising bond strength.
Vibration and Corrosion Resistance
Once cured, the adhesive forms a robust bond that withstands extreme vibration—critical for machinery, engines, and industrial equipment. It also creates a seal that prevents moisture and contaminants, stopping corrosion and extending fastener lifespan.
Oil-Tolerant Formulation
A key advantage is its tolerance to slightly oiled surfaces. This eliminates the need for rigorous pre-application cleaning, saving time and ensuring reliable performance even in environments where complete degreasing is impractical.
Low Viscosity for Easy Application
With a viscosity range of 380.0 - 620.0 mPa·s (Brookfield - RVT, 25.0°C, Spindle 2, 20 rpm), its low-viscosity formula flows smoothly into threaded gaps, ensuring full coverage without excessive mess or waste.
Applications
Industrial Machinery
Ideal for securing bolts, nuts, and studs in heavy machinery—such as manufacturing equipment, compressors, and conveyors—where vibration is constant. Prevents loosening that could lead to breakdowns or safety hazards.
Automotive and Transportation
Used in engine components, transmission systems, and chassis fasteners. Its resistance to oil and high strength make it suitable for under-hood applications where temperatures and vibrations are extreme.
Aerospace and Defense
Trusted for precision fasteners in aerospace assemblies, where reliability is non-negotiable. Its compatibility with nickel and stainless steel meets the material requirements of aerospace-grade components.
Construction and Heavy Equipment
Secures threaded connections in construction machinery, cranes, and excavators. Withstands outdoor conditions, preventing corrosion from rain, dirt, and debris.
Technical Information
Parameter | Details |
Chemical basis / base | Methacrylate |
Color | Green |
Fixture time | 3.0 - 5.0 min. |
Recommended for use with | Metal: brass, Metal: steel, Metal: steel - stainless steel |
Viscosity (Brookfield - RVT, @ 25.0 °C Spindle 2, speed 20 rpm) | 380.0 - 620.0 mPa·s (cP) |
FAQ
What is the curing time for Loctite 276?
While fixture time is 3-5 minutes (when the bond is strong enough to handle light handling), full curing takes 24 hours at room temperature for maximum strength.
Can it be used on galvanized steel?
Yes, Loctite 276 is compatible with galvanized steel, as well as other common metals like brass, stainless steel, and nickel.
How do I remove fasteners locked with Loctite 276?
For disassembly, heat the fastener to 250°C (482°F) to break the bond, then loosen while hot. This method works effectively for maintenance or part replacement.
Is it suitable for high-temperature environments?
It performs well in temperatures up to 150°C (302°F) once fully cured, making it suitable for most industrial and automotive applications.
What packaging options are available?
Packaging includes barreled, bagged, boxed, or palletized formats, with customization available to meet specific order quantities and storage needs.
Loctite 276 combines strength, versatility, and ease of use, making it the go-to threadlocking adhesive for professionals seeking long-lasting, reliable fastener security. Whether for OEM production or field repairs, its performance ensures peace of mind in critical applications.
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