3M Scotch-Weld TL77 Threadlocker High-Strength Permanent Adhesive for Heavy-Duty Fasteners

Basic Product Attributes​

3M Scotch Weld TL77 is a red high-strength permanent thread locking adhesive designed specifically for rough thread fasteners with a diameter not exceeding 38mm. Its anaerobic properties solidify under conditions that isolate air and metal ions, forming a hard adhesive layer that effectively prevents vibration, corrosion, and leakage. The typical viscosity is 7000pps, with a wide temperature range (-54 ° C to 149 ° C), an initial curing time of less than 60 minutes, and a complete curing time of 24 hours

Product Introduction​

TL77 fills thread gaps completely, delivering superior mechanical strength and sealing for high-load applications (e.g., gear housings, motor mounts). Resistant to solvents, fuels, and industrial fluids, it bonds steel, aluminum, etc. Specs: 50ml/tube, 10 tubes/box, 12-month shelf life. Post-cure shear strength reaches 22MPa, replacing mechanical washers to reduce failure risks.

Special Properties​

Permanent Load-Bearing: Post-cure torque resistance ≥30N·m, ideal for heavy bolts in construction/ marine applications, exceeding industry impact resistance standards.

1. Eco-Safe: CFC-free, RoHS-compliant, non-corrosive to metals.
2. Chemical Resistance: Compatible with lubricants, hydraulic fluids, and pH 3-11 chemicals for harsh environments.

Application Scenarios​

• Automotive: Engine bolt locking, reducing maintenance (e.g., 3x vibration life after curing).
• Energy: Wind turbine bolt sealing against salt spray.

• Machinery: High-stress bolt fixation for stamping equipment, minimizing downtime.

Technical Parameters​

1. Who are we?

We are Shenzhen Huazhisheng New Material Technology Co., Ltd., a professional industrial adhesives and sealants supplier based in China since 2018. we serve global markets: Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).

2. What products do you offer?

we supply high-performance adhesives and sealants from global leaders including:

Cemedine, Dow Corning, Shin-Etsu, Araldite, and Momentive,etc.

3. How do you guarantee product quality?

Quality assurance through:

Mandatory pre-production samples approval

Final inspection by QC team before shipment

International certifications: SGS, UL, FDA, RoHS, REACH

4. Why choose us over other suppliers?

Reliable Supply:Authentic products from top manufacturers

Expert Support:Technical guidance for product selection

Global Compliance:Certifications meeting target market standards

Efficient Service:Customized solutions & professional support

5. What services do you provide?

Delivery​:EXW/FOB/CIF

Payment​:USD/EUR/CNY/HKD via T/T, L/C

Support​:Technical consultation & logistics coordination

Shenzhen Huazhisheng New Materials Technology Co., Ltd. is a leading provider of environmentally friendly adhesives and technical solutions, specializing in the application of modified silicone rubber, epoxy adhesives, thermal materials, bonding adhesives, encapsulation adhesives, and UV adhesives across various industries such as electronics, home appliances, LED lighting, automotive, consumer electronics, rail transit, aerospace, and electrical power. Huazhisheng New Materials adheres to the corporate sustainable development strategy of "Progress, Innovation, Professionalism, and Integrity," and integrates the philosophy of "Quality, Efficiency, Environment-Friendly, and Reliability" throughout the entire product lifecycle. Our products have passed SGS, UL, FDA, DIN, and non-toxic certifications, and have been awarded multiple global patents, making us one of the primary suppliers of adhesives and new materials in China's new energy, electronics, automotive, industrial, packaging, environmental protection, construction, and high-speed rail sectors.
With an innovative perspective, we offer customized solutions, continuously develop leading technologies, and provide comprehensive support to clients across various industrial sectors. We are committed to collaborating with our clients to drive industrial transformation and upgrading, ensuring your sustained competitive edge.
Based on advancements in various polymer chemical materials, Huazhisheng New Materials has established a leading position in four key areas: coating, bonding, sealing, and thermal conductivity. Our efficient and environmentally friendly adhesive products and technical solutions help industrial enterprises enhance production efficiency and benefits, protect your electronic products from external chemical agents and harsh usage environments, and extend their lifespan, ensuring continuous and stable operation.