LOCTITE® 620 Retaining Compound
LOCTITE® 620 is a high-strength retaining adhesive designed for cylindrical fittings with bond gaps up to 0.2 mm. It cures in the absence of air between close-fitting metal parts and resists loosening from shock and vibration. With excellent thermal resistance, it is ideal for high-temperature assemblies such as locating pins and bearings in automotive applications.
LOCTITE® 620 Features
- High temperature resistance up to 230°C (450°F)
- Prevents metal fretting and corrosion
- Seals against leakage caused by vibration and shock
LOCTITE® 620 Applications
- Retaining shafts, gears, and pulleys
- Ideal for bushings and sleeves in housings
- Automotive transmission and radiator assemblies
About Prostech
Prostech Philippines is a one-stop solution provider for specialty materials and equipment across electronics manufacturing, from PCBA to final assembly. Our core material and equipment solutions include:
- PCB Assembly Materials
- Cleaning & Degreaser
- Circuit Board Protection
- Thermal Management Solutions
- EMI Shielding
- General Assembly Adhesives
- Elastomeric Materials
- Process Equipment: Potting & Coating Systems, UV/ Heat Curing, Plasma Treatment, Tape placement automation, and cleaning machines
Technical Added Value to customer
Prostech offers customized material and process equipment solutions with engineering support throughout R&D, production process optimization, and performance validation. Our in-house lab located in Alabang, Muntinlupa is equipped to conduct electronics material testing, application simulation, and adhesive validation, helping customers reduce the need for onsite trials and accelerate implementation.
International Supply Chain Advantage
Regional warehouse hubs across Vietnam, Singapore, Malaysia, and the Philippines ensure cross-border reliable supply. In Philippines PEZA-bonded warehouse located at Lima Industrial Park, Batangas enables Prostech to provide responsive, demand-based delivery and significantly shortens standard lead time for Philippines customers.
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PRODUCT CHARACTERISTICS
|
Technology |
Acrylic |
|
Chemical Type |
Methacrylate ester |
|
Appearance (uncured) |
Green liquid |
|
Components |
One component - requires no mixing |
|
Viscosity |
High |
|
Cure |
Anaerobic |
|
Secondary Cure |
Activator |
|
Application |
Retaining |
|
Strength |
Medium to High |
TYPICAL PROPERTIES OF UNCURED MATERIAL
|
Specific Gravity @ 25 °C |
1.16 |
|
Viscosity, Brookfield - RVT, 25 °C, mPa·s (cP) Spindle 5, speed 20, rpm |
8500 |
|
Viscosity, EN 12092 - MV, 25 °C, after 180 s, mPa·s (cP) Shear rate 129 s -1 |
1800 |
TYPICAL PROPERTIES OF CURED MATERIAL
|
Physical Properties: |
|
|
Coefficient of Thermal Expansion, ISO 11359-2,K^-1 |
80×10^-6 |
|
Coefficient of Thermal Conductivity, ISO 8302, W/(m·K) |
0.1 |
|
Specific Heat, kJ/(kg·K) |
0.3 |
|
Elongation, at break, ISO 37, % |
<1 |
|
Adhesive Properties |
|
|
After 24 hours @ 23 °C Compressive Shear Strength, ISO 10123 Steel pins and collars |
N/mm² ≥17 (psi) (≥2,500) |
|
Cured for 24 hours @ 23 °C, followed by 24 hours @ 177 °C, tested @ 23 °C Compressive Shear Strength, ISO 10123 Steel pins and collars |
N/mm² ≥24 (psi) (3.500) |
