Circalok™ 6408 A SLW/B Urethane Encapsulant
Product Information
Circalok™ 6408 A SLW/B urethane encapsulant is a solvent-free, two-component system designed to provide a shock-resistant sealant for encapsulating and potting applications.
Shelf Life
Shelf life of each component is six months when stored at 25°C in original, unopened container.
If stored or shipped at cooler temperatures, Circalok 6408 B hardener may crystallize. If crystals appear, gently warm hardener at 50-60°C to melt crystals before mixing with resin.
Features and Benefits
Longer Working Life – Circalok 6408 SLW (slow) resin permits longer open time for processing.
Low Viscosity – maintains low viscosity for complete and void-free encapsulation.
Environmentally Resistant – provides excellent resistance to water and water vapor; exhibits excellent hydrolytic stability.
Electrically Insulative – provides excellent electrical insulation properties.
Uncured Typical Properties*
| Mixed Appearance | Amber Liquid |
| Mixed Viscosity, cP @ 25°C | 5000 |
| Mixed Specific Gravity | 0.97 |
| Working Life, minutes @ 25°C | 20-30 |
| Time to Handling Strength, hour |
6 @ 25°C 1 @ 65°C |
Cured Typical Properties*
| Hardness, Shore A | 85 |
| Tensile Strength, MPa (psi) | 8.62 (1250) |
| Elongation at Break, % | 250 |
| Linear Shrinkage, mm/mm | 0.002 |
| Volume Resistivity, ohm-cm @ 25°C | 1 x 1014 |
| Dielectric Strength, kV/mm (V/mil) | 23.6 (600) |
*Data is typical and not to be used for specification purposes.
Literature
| Download | Type | Name | |
|---|---|---|---|
| Safety Data Sheet | CIRCALOK 6408 B | |
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Technical Data Sheet | Circalok 6408 A SLW/B Urethane Encapsulant |