Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Dow DOWSIL SE 4447 CV Kit Silicone Elastomer

Dow DOWSIL SE 4447 CV Kit is a two-part addition-cure silicone elastomer system from Dow’s DOWSIL portfolio offering excellent mechanical properties thermal stability and low compression set ideal for demanding sealing gasketing and encapsulation applications across automotive electronics and industrial sectors.
  • dow dowsil se 4447 cv kit silicone elastomer_e3b6f6c8
  • dow dowsil se 4447 cv kit silicone elastomer_e3b6f6c8

Features Of Dow DOWSIL SE 4447 CV Kit Silicone Elastomer

  1. Two-part, addition-cure silicone elastomer system with controlled viscosity for precise dispensing and mold filling.

  2. Excellent thermal stability and long-term performance across a wide temperature range (–60 °C to 200 °C).

  3. Low compression set and high elasticity for reliable sealing and dynamic gasket applications.

  4. UL 94 HB rated for flammability compliance in electrical and electronic enclosures.

  5. Low volatility and minimal outgassing—suitable for sensitive optical and vacuum environments.

Typical Applications Of Dow DOWSIL SE 4447 CV Kit Silicone Elastomer

  1. Sealing and encapsulation of automotive sensors and power electronics modules.

  2. Dynamic gasketing for industrial control housings exposed to vibration and thermal cycling.

  3. Protective potting of LED drivers and power converters in outdoor lighting systems.

  4. Soft-touch overmolding on medical device housings requiring biocompatibility support (ISO 10993 tested).

  5. Thermal interface material (TIM) bonding layer in hybrid power modules.

Specifications Of Dow DOWSIL SE 4447 CV Kit Silicone Elastomer

Chemical TypePlatinum-catalyzed addition-cure silicone elastomer
Product FormTwo-component kit (Part A: base; Part B: catalyst)
AppearancePart A: translucent viscous liquid; Part B: translucent viscous liquid
Mix Ratio (by weight)10:1 (A:B)
Cure ConditionRT cure (24 h) or accelerated cure (100 °C for 30 min)
Hardness (Shore A)40 ± 5
Tensile Strength5.5 MPa (ASTM D412)
Elongation at Break280% (ASTM D412)


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