Basic Specifications
1. Appearance: Red low-viscosity liquid with moderate fluidity
2. Curing System: Anaerobic curing, crosslinks at room temperature only in oxygen-free gaps between mating metal threads; single-component ready-to-use formula without mixing
3. Package: 50ml plastic bottle
4. Brand: TONSAN, subsidiary brand of H.B.Fuller USA, equivalent to Loctite 271
5. Applicable Thread Size: All metal bolts below M42
Key Advantages
1. Ultra-high permanent locking strength: The highest clamping force in this product line, resistant to extreme vibration and impact of mining & heavy industrial equipment; cannot be disassembled by ordinary wrenches, heating above 150℃ is mandatory for removal, ideal for maintenance-free service conditions.
2. Superior permeability with low viscosity: Fully penetrates all thread gaps to achieve uniform locking and sealing, preventing fluid leakage and internal rust.
3. Integrated triple protection for threads: Anti-vibration loosening, fluid sealing and rust inhibition, fully replaces traditional mechanical anti-loosening accessories such as spring washers.
4. Wide metal substrate compatibility: Firmly adheres to carbon steel, cast iron, stainless steel, galvanized steel and aluminum alloy; durable against engine oil, diesel, hydraulic oil, coolant, moisture and weak corrosive media.
5. Stable thermal performance: Continuous service temperature ranges from -60℃ to 150℃, locking property remains unchanged under repeated temperature cycling.
Main Applications
1. Heavy-duty trucks & coaches: Permanent fastening for M24~M42 large load-bearing bolts on axles, differentials and gearboxes;
2. Mining & construction machinery: Thread locking for large reducers and traveling mechanisms of excavators, loaders and crushers;
3. Petrochemical, metallurgy & wind power equipment: Sealing for lifelong maintenance-free fasteners on equipment bases, large pumps and generator sets;
4. Anti-leakage and anti-rust assembly for threaded joints of pressure vessels and high-pressure pipelines.）
Our experienced engineers and technical specialists are here to provide professional guidance, product selection, and application support tailored to your specific requirements.
