Two Component Dielectric Insulation Liquid Silicone Gel SI8708
∎Product Description
SI8708 is two-component transparent self healing silicone gel, when cured it will become elastomer with buffer and self-recovery property. Used to isolate moisture and other noxious pollutant from contacting the circuit board, also used as dielectric of high voltage. The other usage is stress relief for protecting circuit and interconnect devices from high temperature and mechanical stress.
∎Typical Applications
●Used for encapsulation of various modules, semi conductor, IGBT, automotive ECU module, IC chip, weighing sensor, waterproof connector.
∎Technical Data Table
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PROPERTY
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STANDARD/UNITS
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VALUE of SI8708
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PART A
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PART B
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Material
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Polysiloxane
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Hydrogen polysiloxane
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Color
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Visual inspection
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Colorless Liquid
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Colorless Liquid
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Viscosity
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25°C, cps
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1100
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1200
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Density
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25°C, g/cm3
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0.99
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0.99
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Mixture/mass ratio
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A:B=100:100
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Viscosity of mixture
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25°C, cps
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1100
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Operation time
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25°C, min
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80
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Cure condition
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RTV
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25℃,10hours
or 80℃, 10mins
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Cured appearance
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transparent gel
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Penetration
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1/mm
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80
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Thermal Conductivity
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W/m.K
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0.22
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Dielectric strength
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KV/mm
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25
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Volume resistance
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DC500V, ohm-cm
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1.0×1015
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Loss factor
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1 MHz
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＜0.001
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Dielectric constant
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1 MHz
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2.8
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Application temperature
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°C
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-60~260
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Note：All above data were tested under standardized condition, or tested by further experiments.
∎Key Features
- 1:1 addition type, good adhesive strength and self-healing
- High elongation, excellent flexibility for mechanical stress relieving
- Low oil penetration after cured, good anti-poisoning property
- Good dielectric in high temperature for high voltage protection
- Excellent aging resistance and weatherability
- Excellent waterproof, corrosion prevention, moisture proof and chemical media resistance
∎Packing Specification
●Part A—10 KG/Bucket
●Part B—10 KG/ Bucket.
