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

Dow DOWSIL SE 4485 L Thermally Conductive Adhesive

Dow DOWSIL SE 4485 L is a thermally conductive adhesive from Dow’s DOWSIL series offering excellent heat transfer performance combined with strong adhesion to metals plastics and ceramics. It cures at room temperature or accelerated with mild heat delivering low thermal resistance high reliability and long-term stability in demanding electronics thermal management applications.
  • dow dowsil se 4485 l thermally conductive adhesive_037b7fbe
  • dow dowsil se 4485 l thermally conductive adhesive_037b7fbe

Features Of Dow DOWSIL SE 4485 L Thermally Conductive Adhesive

  1. High thermal conductivity (1.5 W/m·K) 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 acceleration—no mixing required, simplifying manufacturing processes.

  4. Excellent electrical insulation properties with high dielectric strength (>15 kV/mm).

  5. UL 94 V-0 rated flame retardancy for enhanced safety in power electronics and automotive applications.

Typical Applications Of Dow DOWSIL SE 4485 L Thermally Conductive Adhesive

  1. Attachment of power semiconductor devices (e.g., IGBTs, MOSFETs) to heatsinks in inverters and converters.

  2. Thermal interface bonding in electric vehicle (EV) battery management systems (BMS) and onboard chargers.

  3. Die attach and component mounting in LED lighting modules requiring reliable thermal management.

  4. Thermal bonding of sensors, controllers, and DC-DC converters in industrial automation equipment.

  5. Attachment of heat-generating components in 5G base station power amplifiers and RF modules.

Specifications Of Dow DOWSIL SE 4485 L Thermally Conductive Adhesive

Chemical TypePlatinum-cured addition-cure silicone
Product FormSingle-component liquid
AppearanceOff-white, viscous paste
Primary ApplicationsThermally conductive die attach and component bonding
Key FeaturesThermally conductive, electrically insulating, low modulus, flame retardant
BenefitsReduces thermal resistance, accommodates CTE mismatch, enhances long-term reliability
Cure MechanismRoom temperature cure (7 days @ 25°C) or accelerated cure (60 min @ 125°C)
UL RecognitionUL 94 V-0, UL 746C recognized


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