High-Strength Anaerobic Threadlocker for Permanent Fastening
As a premium single-component, medium-viscosity anaerobic threadlocker, Thread Locker 271 is engineered to deliver ultra-high strength and permanent locking performance for threaded fasteners. Formulated with advanced methacrylate resin, it cures rapidly in the absence of air and presence of metal ions, forming a rigid, vibration-resistant bond that eliminates loosening, leakage, and corrosion-making it the go-to choice for industrial professionals, mechanics, and manufacturers worldwide.
Core Advantages That Define Industrial Reliability
•Ultra-High Strength for Permanent Locking: Boasts exceptional breakaway and removal torque (25-40 N·m removal torque, 17-40 N·m breakaway torque) to secure M36 and smaller threaded fasteners permanently. Ideal for critical applications where vibration, pressure, or temperature fluctuations would otherwise cause fastener failure.
•Anaerobic Cure Mechanism: Cures fully within 24 hours at room temperature (25℃) when confined between metal surfaces, with initial fixture in just 10-20 minutes. The oxygen-free curing process ensures complete filling of micro-gaps between threads, creating a hermetic seal against fluids and contaminants.
•Broad Temperature & Chemical Resistance: Maintains structural integrity in extreme operating temperatures ranging from -54℃ to 149℃ (-65℉ to 300℉). Resists mineral oils, gasoline, water-glycol mixtures, ethanol, and acetone, ensuring long-term performance in harsh industrial environments.
•Medium Viscosity for Precise Application: With a viscosity of 400-600 mPa·s, it offers excellent flow control to avoid run-off while ensuring full coverage of thread surfaces. Accommodates maximum gap fill of 0.13mm, adapting to standard threaded fit tolerances.
•Corrosion & Leak Protection: Cures to a hard, chemical-resistant polymer that seals threads against moisture, dirt, and corrosive elements. Prevents rust and degradation of fasteners, extending the service life of equipment and components.
Industrial-Grade Applications
Thread Locker 271 is designed for critical permanent fastening applications across automotive, manufacturing, and heavy machinery industries, including:
•Automotive engine components: Cylinder head studs, manifold bolts, and crankshaft pulleys where vibration resistance is paramount.
•Heavy machinery: Hydraulic fittings, gearbox fasteners, and axle bolts that endure high torque and continuous vibration.
•Industrial equipment: Pump and compressor studs, turbine components, and electrical enclosures requiring hermetic sealing.
•M16-M26 threaded fasteners: Specifically optimized for medium to large studs and bolts needing permanent locking without washers or mechanical retainers.
Technical Specifications
|
Property |
Value |
Test Condition |
|
Color |
Red |
Visual Inspection |
|
Viscosity |
400-600 mPa·s |
25℃ |
|
Density |
1.1-1.2 g/cm³ |
25℃ |
|
Operating Temperature Range |
-54℃ to 149℃ (-65℉ to 300℉) |
Continuous Service |
|
Cure Time |
10-20 mins (initial); 24 hrs (full cure) |
25℃, Steel Surfaces |
|
Max Gap Fill |
0.13 mm |
Threaded Joints |
|
Shelf Life |
12-18 months |
15-28℃, Unopened |
Application & Handling Guidelines
For optimal bonding performance, follow these steps: 1. Clean threaded surfaces thoroughly with a solvent (e.g., trichloroethane, methyl ethyl ketone) to remove oil, grease, and debris-avoid hydrocarbon solvents that leave residues. Lightly abrade surfaces for enhanced adhesion. 2. Apply 2-4 drops of Thread Locker 271 to the male threads (or spread evenly on female threads) of the fastener, focusing on the engagement area. 3. Assemble components and tighten to the recommended torque immediately. 4. Allow 24 hours for full curing; use accelerators (e.g., 7649/7471) for faster cure on inert metals (aluminum, stainless steel) or in low-temperature environments.
Disassembly: Requires localized heating to 230-260℃ (446-500℉) to break the bond, followed by mechanical loosening with a wrench. Avoid reusing fasteners after disassembly for critical applications.
Avoid contact with skin and eyes-wear protective gloves and goggles. Do not use on plastic components, as it may cause swelling or cracking. Do not return spilled glue to the original container to prevent contamination.
From automotive engines to heavy industrial machinery, Thread Locker 271 delivers uncompromising permanent locking performance that minimizes downtime and ensures operational safety. Trust in a threadlocker engineered for the world's toughest applications.
