PRODUCT DESCRIPTION
LOCTITE® 620 is designed for the bonding of cylindrical fitting parts, particularly where bond gaps can approach 0.2 mm and where maximum strength at room temperature is required. The product cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. LOCTITE® 620 provides robust curing performance. The product offers higher temperature performance and makes it particularly suited for retaining higher temperature assemblies such as locating pins in radiator assemblies and bearings in auto transmissions. Typical applications include locking bushings and sleeves into housings and on shafts.
FEATURES of LOCTITE® 620
- High temperature resistance.
- Prevents metal fretting and corrosion and Seals against leakage.
- Operating temperature: -55°C to 230°C (-65°F to 450°F)
APPLICATION of LOCTITE® 620
- Retaining
- Ideal for shafts, gears, pulleys and similar cylindrical parts
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
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- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
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) |
