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