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

Dow DOWSIL 340 Silicone Heat Sink Compound

Dow DOWSIL 340 Silicone Heat Sink Compound is a thermally conductive, electrically insulating grease designed for efficient heat transfer between microprocessors, power devices and heatsinks. Featuring low thermal resistance, excellent long-term stability and wide operating temperature range (−50°C to +200°C), it ensures reliable thermal management in demanding electronics applications.
  • dow dowsil 340 silicone heat sink compound_95bf36e3
  • dow dowsil 340 silicone heat sink compound_95bf36e3

Features Of Dow DOWSIL 340 Silicone Heat Sink Compound

  1. Thermally conductive silicone-based grease with non-curing, reworkable formulation.

  2. Excellent thermal stability across a wide operating temperature range (–50 °C to +200 °C).

  3. Low thermal resistance and high interfacial wetting for efficient heat transfer between components.

  4. Electrically insulating—prevents short circuits while enabling reliable thermal management.

  5. Non-toxic, RoHS-compliant, and halogen-free formulation suitable for demanding electronics environments.

Typical Applications Of Dow DOWSIL 340 Silicone Heat Sink Compound

  1. Thermal interface material for CPUs, GPUs, and power semiconductors in computing and data center hardware.

  2. Heat dissipation in LED lighting modules and drivers requiring long-term reliability under thermal cycling.

  3. Cooling solutions for automotive electronics, including ADAS control units and power inverters.

  4. Thermal management in industrial power supplies and motor drives exposed to vibration and temperature extremes.

Specifications Of Dow DOWSIL 340 Silicone Heat Sink Compound

Chemical TypeDimethyl silicone oil with thermally conductive ceramic fillers
Product FormOff-white, viscous paste
AppearanceHomogeneous, non-separating grease
Primary ApplicationsThermal interface material for heat sinks, microprocessors, and power devices
Key FeaturesNon-curing, reworkable, electrically insulating, low volatility
BenefitsReduces junction temperature, extends component lifetime, simplifies assembly and rework
RoHS ComplianceCompliant (Directive 2011/65/EU)
Halogen ContentHalogen-free (per IEC 61249-2-21)


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *