LOCTITE® 431™ is a medium-viscosity, one-part ethyl cyanoacrylate adhesive that cures with humidity. It is designed for strong tension and shear strength bonding across metals, plastics, elastomers, and porous materials such as wood, paper, leather, and fabric. It meets ISO-10993 biocompatibility standards for medical device applications.
| Property | Value |
|---|---|
| Uncured Properties | |
| Specific Gravity @ 25°C | 1.07 |
| Viscosity (mPa·s) @ 25°C | 600 – 1,200 (Cone & Plate) |
| Viscosity (Brookfield LVF) | 800 – 1,200 (Spindle 2, Speed 6 rpm) |
| Cured Properties | |
| Coefficient of Thermal Expansion (K⁻¹) | 364×10⁻⁶ |
| Thermal Conductivity (W/m·K) | 0.3 |
| Glass Transition Temperature (°C) | 183 |
| Electrical Properties | |
| Volume Resistivity (Ω·cm) | 10.9×10¹⁵ |
| Surface Resistivity (Ω) | 1.0×10¹⁵ |
| Dielectric Breakdown Strength (kV/mm) | 25 |
| Curing Performance | Cures with ambient moisture; full strength in 24 hours |
| Fixture Time (Steel) | 180 – 300 sec |
| Fixture Time (Aluminum) | 10 – 15 sec |
| Fixture Time (Polycarbonate) | 5 – 10 sec |
| Property | Value (N/mm²) | Value (psi) |
|---|---|---|
| Tensile Strength (ISO 6922) | ||
| Buna-N Rubber | ≥6 | ≥870 |
| Steel (grit blasted) | 13 – 20 | 1,900 – 2,900 |
| Lap Shear Strength | ||
| Steel (grit blasted) | 25 – 31 | 3,600 – 4,500 |
| Aluminum (etched) | 13 – 24 | 1,900 – 3,500 |
| ABS | 8 – 11 | 1,200 – 1,600 |
| Polycarbonate | 7 – 11 | 1,000 – 1,600 |
BERGQUIST® GAP FILLER TGF 2900LVO, a silicone-based 2-component system, delivers optimized heat transfer across ultra-thin bondline interfaces. It is engineered for automotive control modules, high-throughput manufacturing lines, and electronics sensitive to siloxane outgassing, ensuring stable operation in environments spanning -40 °C to +150 °C.
BERGQUIST® LIQUI FORM TLF 10000 addresses critical hotspots in RRU/AAU/BBU units, EV battery packs, 5G antenna modules, industrial controllers, and compact PCBs while stabilizing vertical gaps ≤2.5 mm and preserving electrostatic reliability.
TECHNOMELT® Low Pressure Molding polyamides deliver precision encapsulation of PCBs, PCBAs, connectors, sensors, power modules, LEDs, HVAC controllers, and wearable medical devices, while also enabling leakproof integration in liquid-delivery systems.
Huntsman ARALDITE® systems are designed for • Rotor potting to replace permanent magnets in magnetless motor concepts • Stator encapsulation for enhanced coil protection • High voltage impregnation processes ensuring worker safety and long term adhesion.
Techniq Vietnam provides end-to-end materials and process solutions, integrating world-class technologies in adhesives, soldering, and thermal management.
Through partnerships with leading global brands, we deliver high-value materials, expert consulting, and optimized supply chains ensuring timely delivery, efficiency, and sustainable growth for our clients.
At Techniq, our mission is to connect cutting-edge materials, processes, and equipment with customer needs, enabling efficiency, reliability, and long-term value creation.
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