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

Dow DOWSIL SE 4486 Thermally Conductive Adhesive

Dow DOWSIL SE 4486 is a thermally conductive adhesive designed for bonding and heat dissipation in electronics. It offers excellent thermal conductivity, low modulus, and room-temperature curing. Compatible with various substrates, it ensures reliable performance under thermal cycling and mechanical stress. Ideal for LED assemblies, power modules, and EV battery applications.
  • dow dowsil se 4486 thermally conductive adhesive_4ba321e6
  • dow dowsil se 4486 thermally conductive adhesive_4ba321e6

Features Of Dow DOWSIL SE 4486 Thermally Conductive Adhesive

  1. High thermal conductivity for efficient heat dissipation in demanding electronic assemblies.

  2. Low modulus silicone formulation enabling stress relief and long-term reliability under thermal cycling.

  3. Room-temperature cure with optional heat-assisted acceleration for flexible manufacturing integration.

  4. Excellent adhesion to common substrates including aluminum, copper, ceramics, and plated plastics.

  5. UL 94 V-0 rated for flame retardancy, supporting safety-compliant designs.

Typical Applications Of Dow DOWSIL SE 4486 Thermally Conductive Adhesive

  1. Attachment of power semiconductor devices (e.g., IGBTs, MOSFETs) to heat sinks in EV inverters and industrial drives.

  2. Bonding LED modules and drivers in high-brightness lighting systems requiring stable thermal management.

  3. Thermal interface bonding in 5G base station power amplifiers and RF front-end modules.

  4. Die attachment and heat sink bonding in aerospace and defense avionics where vibration resistance is critical.

  5. Assembly of renewable energy power converters, including solar inverters and wind turbine controllers.

Specifications Of Dow DOWSIL SE 4486 Thermally Conductive Adhesive

Chemical TypeHeat-curable, addition-cure silicone elastomer
Product FormPaste (two-component, Part A + Part B)
AppearanceGray, homogeneous paste
Primary ApplicationsStructural thermal bonding and die attach
Key FeaturesThermally conductive, electrically insulating, low modulus
BenefitsReduces interfacial thermal resistance; accommodates CTE mismatch; enables simplified assembly
Cure Schedule (Typical)24 h at 25°C or 1 h at 100°C
Storage Stability12 months at ≤25°C (unopened)


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