LOCTITE® 620 is a high-viscosity, anaerobic acrylic adhesive designed for bonding cylindrical fitting parts. It cures in the absence of air between close-fitting metal surfaces, preventing loosening and leakage caused by shock and vibration. The product offers medium-to-high strength and excellent high-temperature resistance, making it suitable for retaining applications in extreme conditions.
| Property | Value |
|---|---|
| Chemical Type | Methacrylate Ester |
| Appearance | Green Liquid |
| Specific Gravity (@23°C) | 1.16 |
| Viscosity (Brookfield, 25°C) | 8,500 mPa·s (Spindle 5, 20 rpm) |
| Viscosity (EN 12092, 25°C) | 1,800 mPa·s (Shear rate 129 s⁻¹) |
| Cure Mechanism | Anaerobic, Secondary Cure with Activator |
| Property | Value |
|---|---|
| Coefficient of Thermal Expansion | 80×10⁻⁶ K⁻¹ |
| Thermal Conductivity | 0.1 W/(m·K) |
| Specific Heat | 0.3 kJ/(kg·K) |
| Elongation at Break (ISO 37) | <1% |
| Condition | Compressive Shear Strength (ISO 10123) |
|---|---|
| Cured 24 hrs @ 23°C | 17 N/mm² (2,500 psi) |
| Cured 24 hrs @ 23°C, then 24 hrs @ 177°C, tested @ 23°C | 24 N/mm² (3,500 psi) |
| Condition | Strength Retention (%) |
|---|---|
| Motor Oil (125°C, 1000 hrs) | 100 |
| Unleaded Petrol (22°C, 1000 hrs) | 95 |
| Brake Fluid (22°C, 1000 hrs) | 100 |
| Water/Glycol 50/50 (87°C, 1000 hrs) | 80 |
| Ethanol (22°C, 1000 hrs) | 75 |
| Acetone (22°C, 1000 hrs) | 95 |
LOCTITE ECCOBOND UF 9000AG-061 is specifically formulated for FCBGA and Cu pillar flip chip packaging, ensuring robust solder joint encapsulation under extreme electrothermal cycling from -65 °C to 150 °C. Its superior capillary flow also optimizes throughput in automated assembly lines for high-density ICs.
BERGQUIST microTIM mTIM 1028 is purpose built for riding cage assemblies in servers, switches, and routers, interfacing with electroless nickel plated copper or aluminum heat sinks. It ensures stable operation in high power transceiver modules while also extending applicability to liquid cooling components, heat pipes, and fin based dissipative structures.
LOCTITE® ABLESTIK NCA 3218 is specifically formulated for ADAS optical modules, ensuring secure bonding in lens barrel to housing and lens housing to circuit board interfaces where dimensional accuracy and dielectric integrity are non negotiable.
Loctite® 3296, a dual cure (UV & thermal) adhesive, is engineered for active alignment assembly of ADAS cameras and LiDAR modules. Its optimized bonding to aluminum and FR4 substrates ensures secure fixation of optical components while enabling nanometer level alignment critical for high resolution imaging.
Techniq Vietnam provides end-to-end materials and process solutions, integrating world-class technologies in adhesives, soldering, and thermal management.
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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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