Thermally Conductive Rubber Pads

Combining high thermal conductivity and electrical isolation into a single interface material

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Thermal Rubber Pads are typically made from a relatively high durometer, silicone-based material filled with thermally conductive materials like aluminum oxide or boron nitride. Additionally, thermal pads can be reinforced by fiberglass or another sheet like material to increase tear resistance of the material. This makes Thermal Rubber pads a robust and compliant replacement for thermal interface hardware.

Transtherm® Thermally Conductive Silicone Rubber and Silicone-Free Rubber materials combine high thermal conductivity and electrical isolation into a single component. Transtherm® Rubber interface materials benefit from the higher thermal conductivity of aluminum oxide particles, but still maintain high dielectric strength even at high temperatures.

Most Transtherm® Silicone Rubbers and Silicone-Free Rubbers are available with a mechanical reinforcement option, typically woven fiberglass, for additional mechanical stability. Most Rubber Thermal Pads have a high durometer and take large amount of force to deform the shape and thickness of the pad. This makes thermal pads an ideal reusable thermal interface material. Resolve dry out, cracking, and silicone migration issues by replacing mica and thermal grease applications with cleaner and reproducible rubber materials.

Thermally Conductive Rubber can easily be converted and laminated with other products to create a combined thermal interface material pad and electrical isolation solution ready for installation into customer applications.

Boyd’s Transtherm® Silicone Rubbers and Silicone-Free Rubbers conform with REACH and RoHS regulations.

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Product Details

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Thermally Conductive Rubber Pad Material

Rubbers for thermal interface materials are available in a variety of thicknesses and Shore A hardnesses. Meant for high temperature applications.

Common Rubber Pad Materials:
  • Silicone
  • Silicone-Free (Ideal for preventing silicone migration for more sensitive electronic and cosmetic assemblies)

  • Reinforcement Materials:
  • Glass Fiber, Woven Fiberglass (High Tear strength)
  • Polyimide
  • Thermally Conductive Rubber Pad Solutions

    • Improved tear strength with polyimide or woven fiberglass reinforcement
    • Electrical Isolation ideal for low to medium power applications
    • Laminate with adhesives to create easy to install thermal interface solutions

    Key Industries

    Hover over the Key Industries below to see popular applications for Heat Shields


  • Battery Isolation
  • Power Conversion & Storage
  • Uninterruptible Power Supplies (UPS)
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    Power Electronics

  • Electronic Kitchen Appliances
  • Smart Home Devices
  • Smart Home Assistants
  • Home Entertainment Systems
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    Enterprise Electronics

  • Power Supply Units
  • Uninterruptible Power Supplies (UPS)
  • Quad Small Form-Factor Pluggable (QSFP)
  • DDR SDRAM Thermal Management Solutions
  • Hard Drive (HDD) Cooling Solutions
  • Signal Amplifiers
  • CD-ROM Solutions
  • Read More…

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