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 |
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Avantek Viet Nam is a dynamic MRO, direct materials and equipment supplier that brings advanced technological solutions to maximize satisfaction of customers.
We are expert in import and export of adhesives, accessories and equipment in both domestic and cosmetic industrial fields, production and technology research and development.
Our solutions promise to bring best optimal effectiveness along with competitive prices, excellent customer services, dedicated on-site support.
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