TONSAN 1243 is a blue, medium-strength anaerobic threadlocker with thixotropic viscosity, fast cure and good tolerance of lightly oiled surfaces. Designed for 6–20 mm fasteners, it prevents loosening and leakage from shock and vibration and remains removable with hand tools. FEYANA supplies TONSAN 1243 and can help you select the right grade for your application.
Key features
- Blue, thixotropic viscosity
- Excellent chemical resistance; works on lightly oiled surfaces
- Fast curing with good oil tolerance
- For 6–20 mm fasteners; removable with hand tools
- Prevents loosening and leakage from shock and vibration
- Conforms to MIL-S-46163A and JB/T7311-2008
Technical data
| Color | Blue |
|---|---|
| Specific gravity (g/cm3) | 1.10 |
| Viscosity (mPa·s) | 2800/Thixotropic |
| Gap fill (mm) | 0.13 |
| Break torque (N·m) | 20.0 |
| Prevail torque (N·m) | 7.0 |
| Fixture time (min) | 10 |
| Fully cured time (h) | 24 |
| Temperature range (℃) | -60~150 |
Applications
- Wind turbine bolts below M20: axle-case control valve, generator base
- Bolt locking in construction machinery
- Thread locking on rail vehicles
Packaging: 50ml/bottle (Order no. 124301); 250ml/bottle (Order no. 124305)
Data are typical values from the manufacturer’s literature. Contact us for the TDS/SDS and selection advice.
Contact FEYANA: WhatsApp/Zalo +84 988 641 591 – sales.00@feyana.com



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