Maxtech SI8708 Liquid silicone gel for electronics,Optical Fiber Splice Closure, waterproof junction box and underwater instrument
∎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.
∎Key Features
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1:1 addition type, good adhesive strength and self-healing
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High elongation, excellent flexibility for mechanical stress relieving
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Low oil penetration after cured, good anti-poisoning property
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Good dielectric in high temperature for high voltage protection
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Excellent aging resistance and weatherability
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Excellent waterproof, corrosion prevention, moisture-proof and chemical media resistance
Cable Junction Box Silicone Gel Splice Kit Connector Silicone Electrical Potting and Encapsulation Sealants
Two-component silicone gel
Encapsulating Potting Gel Seal Compound
Cable Junction Box Silicone Gel Splice Kit Connector Silicone Electrical Potting and Encapsulation Sealants
∎Typical Applications
●Used for encapsulation of various modules, semi-conductor, IGBT, automotive ECU module, IC chip, weighing sensor, waterproof connector.
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∎Technical Data Table
PROPERTY STANDARD/UNITS VALUE of SI8708
---- ---- PART A PART B
Material ---- Polysiloxane Hydrogen polysiloxane
Color Visual inspection Light Blue.Colorless Liquid Colorless Liquid
Viscosity 25°C, cps 1100 1200
Density 25°C, g/cm3 0.99 0.99
Mixture/mass ratio ---- A:B=100:100
Viscosity of mixture 25°C, cps 1100
Operation time 25°C, min 80
Cure condition ---- 25℃,10hours or 80℃, 10min
Cured appearance ---- Transparent gel
Penetration 1/mm 80
Thermal Conductivity W/m.K 0.22
Dielectric strength KV/mm 25
Volume resistance DC500V, ohm-cm 1.0×1015
Loss factor 1 MHz ＜0.001
Dielectric constant 1 MHz 2.8
Application temperature °C -60~260
Note：All above data were tested under standardized conditions or tested by further experiments.
How to use ?
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Mix Part A and Part B by 1:1 mass ratio, after evenly mixed, pouring directly into the components or modules as per requirements.
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Still the potted component to let out the bubbles. It can be heat cured, about 30mins in 80°C. It needs about 10 hours cured under room temperature.
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Vacuum defoaming can improve the performance of cured product.
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Seal the remaining products tightly after use.
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Low temperature will slow the curing speed; heat curing is recommended.
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It's hard for SI8708 to cure if contact with sulfur, amine or Sn
∎Packing Specification
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●Part A—10 KG/Bucket
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●Part B—10 KG/ Bucket.
∎Transport &Storage
● When stored at or below 25°C in the original unopened containers, this product has a usable life of 12 months from the date of production. A sampling test is necessary for products that exceed shelf life before taking use.
It’s non-dangerous goods, can be transported as normal chemicals, CAUTION leakage during transport.
