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Begel 8708 Two components soft silicone gel
- Fast mixing ( 1:1) and easy processing due to the low viscosity.
- Room curing at normal.
- Very fast curing kinetics at elevated temperature.
- Adhereand elastic surface
- High tensile strength
FEATURES
BeGel 8708 A & B is a two component silicone elastomer that crosslinks at room temperature by polyaddition reaction.The pueolymerisation can be accelerated by heat ( max. 150℃ ).
| Appearance | transparent |
| Penetration,1/mm | 90 |
| Dielectric Strength,KV/mm | 25 |
| Volume Resistivity,Ω·cm | 1.0×1015 |
| Dielectric Constant at 1 MHz | 2.8 |
| Range of Using temperature | – 60 ∽ 260 ℃ |
The cured gel is used in some medical mattress, headrest, skin sticker, electric parts, IGBT module, junction box, auto control, and inverter.
USE
- Mixing the two components
- BeGel 8708 A & B are mixed by weight in a fixed ratio given above.
- The two components may be thoroughly mixed either by hand or using a low-speed electric or pneumatic mixer to minimise the introduction of air and to avoid any temperature increase.
- Further information is available upon request.
2 . Handling
- The mixture should be degassed preferably at 30 to 50 mbar to eliminate any entrapped air. If a dispensing machine is used, the two components are degassed separately prior to mixing.
- The silicone mixture expands to 3 to 4 times of its initial volume and bubbles rise to the surface .The bubbles progressively disappear and the mixture returns to its initial volume after 2 to 3 minutes. Wait a few minutes to complete the degassing and then flash the vacuum. The silicone is ready for pouring, either by gravity or under low pressure.
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