Epoxy System Enables Reliable Heat Transfer

EPOXIES’ 70-3812 NC is a two component, aluminum filled epoxy system. The system is used for making heat resistant tools, parts, or bonds that require very high thermal conductivity and heat resistance.

Viable for a variety of heat sink applications, common applications include fin to base, folded-fin set to base, pin-fin set to base, and cold plate tube to extruded base. Specifications include:

  • Color Grey
  • Viscosity, 25°C,
  • Resin 130,000
  • Mixed 8,000
  • Specific Gravity, 25°C 1.81
  • Working time, 100 grams, 25°C 5 Hours
  • Durometer, Shore D
  • 25°C 90
  • 100°C 65
  • Tensile Strength, psi, 25°C 9,000
  • Aluminum to Aluminum
  • 1” overlap 2,500
  • Compressive Strength, PSI, 25°C 18,500
  • Mix Ratio, by weight 100:10
  • Operating temperature, °C -55 to 155
  • Coefficient of Thermal Expansion, °C 28 x 10-6
  • Thermal Conductivity, W/m- °K 4.5
  • Outgassing
  • % TML .91
  • % CVCM .07

 For more details, visit EPOXIES.

Sponsored by Anritsu Company

New VNA technologies enable mmWave broadband testing to 220 GHz, helping researchers and engineers to overcome test challenges and simplify mmWave testing.

Application development in the mmWave frequencies is growing. Broadband testing over hundreds of GHz of bandwidth is subject to repeatability/accuracy deficits, and engineers demand solutions to help overcome challenges and simplify mmWave testing.
Read more on

Suggested Articles

AMD and Nvidia saw 6% drop, joining long list of losers

Interconnections supplier Amphenol Corp. has downgraded its Q1 2020 fiscal guidance due to coronavirus effects on its business.

New Ethos-U55 with Cortex-M is designed for industry and IoT edge