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DOWSIL™ EA-4700 CV Adhesive – Adhesive/Sealant – Automotive Electronics

  • Item Name: DOWSIL™ EA-4700 CV Adhesive
  • Manufacturer: Dow Chemical Company
  • Technologies: Two-part addition-cure silicone
  • Color: Part A – White, Part B – Black
  • Cure Type: Room temperature fast cure or heat accelerated cure
  • Package Size: Contact to Techniq VN for details.
  • Shelf Life: 12 months

1. Product Overview

DOWSIL™ EA-4700 CV Adhesive is a two-part, fast room-temperature cure silicone adhesive designed for durable adhesion in automotive electronics. It offers high-temperature stability, controlled silicone volatility, and environmental sealing. The material cures rapidly at room temperature but can be heat-accelerated.


2. Applications

  • Electronics control units
  • Sensor modules
  • Battery pack applications (lid seal, base plate attaching, gasketing, connector sealing)
  • Automotive applications requiring strong, reliable adhesion

3. Typical Properties

Before Mixing

Property Value
One or Two-Part Two-Part
Mix Ratio (A:B) 1:1 (by weight/volume)
Color Part A: White, Part B: Black
Viscosity (Pa.s) Part A: 24, Part B: 18
Mixed Viscosity (Pa.s) 27
Working Time (25°C) 20 min

After Curing

Property Unit Value
Cure Time (25°C) Hours 2 (Hardness complete)
Hardness (JIS A) 19
Tensile Strength MPa 3.7
Elongation % 630
Dielectric Strength kV/mm 25
Volume Resistivity ohm.cm 1.5E+15
Dielectric Constant (1 MHz) 3.2
Dissipation Factor (1 MHz) 1.8E-03
Temperature Range °C -45 to 150

Adhesion Performance

Substrate Time & Condition Adhesion Strength (MPa)
Aluminum (A5052P) 72h @ 25°C 3.9 (CF100%)
PBT (Unfilled) 72h @ 25°C 2.7 (CF100%)

BERGQUIST microTIM mTIM 1028 Thermal Interface Coating High performance thermal management solution for nickel finished heat sinks, optical transceivers, and data center liquid cooling systems

BERGQUIST microTIM mTIM 1028 is purpose built for riding cage assemblies in servers, switches, and routers, interfacing with electroless nickel plated copper or aluminum heat sinks. It ensures stable operation in high power transceiver modules while also extending applicability to liquid cooling components, heat pipes, and fin based dissipative structures.

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