Two Component Self-healing Silicone Gel for Connector and Instrument (SI2350)
SI2350A/B is two component self-healing silicone gel, after cured it will be quite elastic material with buffer and self recovery. It's used to isolate moisture and other noxious pollutant from contacting the circuit board, also used to dielectric of high voltage. The other usage is stress relief for protecting circuit and contact device from high temperature and mechanical stress.
Features
1.1: 1 addition type, good adhesive strength and self-healing
2. Superior elasticity for stress relief
3. Quite low oil penetration after cured, good anti-poisoning
4. Good dielectric in high temperature, protect from high voltage
5. Excellent age resistance and weather resistance
6. Excellent waterproof, corrosion prevention, moisture proof and chemical media resistance
Usage
1. Use in Optical Fiber Splice Closure, waterproof junction box and underwater instrument
2. Widely used in power electronics, ignition module and potting of IGBT
Operation
1. Mix Part A and Part B by 1: 1, pour directly into the protection needed component(or module). It'd better to pour slowly by one side of the vessel wall which can cause less bubbles.
2. Still the potted component to let it discharge the bubble. It can be heated to cure after the bubbles are almost disappeared. It also can be cured under room temperature.
Package & Storage
Part A: 10L/5L Plastic Bucket Part B needs to be sealed and avoid light and hot
Part B: 10L/5L Plastic Bucket Shipped and stored as normal chemicals
Can be customized Shelf life: 12 months(25º C).
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Properties before curing |
Part |
2350A |
2350B |
Component |
polysiloxane |
Hydrogen polysiloxane |
Appearance |
Transparent liquid |
Transparent liquid |
Viscosity, mPa.s(25ºC) |
1000 |
1000 |
Density, g/cm3(25ºC) |
0.99 |
0.99 |
Mixture/mass ratio |
A:B = 100:100 |
Tensile strength after mixing,mPa@s(25ºC) |
1,000 |
Operation time after mixing, min(25ºC) |
10-15min |
Properties after curing |
Appearance |
Colorless transparent gel |
Needle penetration,1/10mm |
150 |
Dielectric strength, KV/mm |
≥25 |
Volume resistance DC500V, Ω@cm |
1.1×10 15 |
Loss factor(1 MHz) |
<0.001 |
Dielectric constant (1 MHz) |
<3.00 |
Application temperature, ºC |
- 60 ~260 |
Founded in DEC. 2003, SEPUNA has been engaged in researching, manufacturing and marketing automobile sealant and adhesive for 9 years.
Since the foundation, SEPUNA Chemical has been focusing on adhesive's researching and application. Then in 2005, We acquired PUNADE technology which is from Switzerland.
Within 9 years, SEPUNA mainly develops Silicone, Polyurethane and Epoxy resin adhesives. And in the future, we will enlarge our line to Unsaturated, Natural and Acrylic Resin adhesive.
After 9 years' improvement, by the keep researching and innovation, SEPUNA is already a mature adhesive supplier with the core competitiveness.