LOCTITER 620 High-Temp Retaining Compound, Anaerobic Acrylic Adhesive for Cylindrical Parts
LOCTITER 620 is a one-part, green, high-viscosity, anaerobic acrylic retaining compound designed for high-strength bonding of cylindrical metal assemblies, featuring excellent high-temperature resistance (up to 230°C).
Product Properties
| Property | Value / Description |
|---|---|
| Technology | Acrylic |
| Chemical Type | Methacrylate |
| Appearance (Uncured) | Green liquid |
| Viscosity @25°C | 8,500 mPa·s (cP) |
| Density @25°C | 1.16 g/cm³ |
| Cure Type | Anaerobic |
| Secondary Cure | Activator |
| Application | Retaining |
| Strength | Medium to High |
| Thermal Expansion Coefficient | 80 * 10⁻⁶ K⁻¹ |
| Thermal Conductivity | 0.1 W/(m·K) |
| Specific Heat | 0.3 kJ/(kg·K) |
| Operating Temp. Range | -55°C to 230°C |
| Gap Fill Capability | ~0.15 – 0.25 mm |
| Shear Strength (Steel) | ~26 N/mm² (3800 psi) |
The product cures in the absence of air between close-fitting metal surfaces, effectively preventing loosening and leakage caused by shock and vibration. It is typically used for assembling shafts, bushings, bearings, locating pins, and other cylindrical parts.
LOCTITER 620 has a viscosity of approx. 8,500 mPa·s, density 1.16 g/cm³, coefficient of thermal expansion 80*10⁻⁶ K⁻¹, thermal conductivity 0.1 W/(m·K), medium to high strength, suitable for approx. 0.2 mm clearance, and can be accelerated with activators.
Typical applications include: locating pins in radiator assemblies, bearings in automotive transmissions, sleeves in pump housings, gear-to-shaft assemblies, and pulleys/bushings in high-temperature environments.
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