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Thermal insulation for platens

Thermal insulation for platens

  • Low thermal conductivity
  • Oil- and moisture-resistant
  • High compressive strength at process temperatures
  • Safer and more durable than alternative insulators such as calcium silicate and mica
  • Withstands rough handling during mold changes


We offer a fiberglass-reinforced, mineral-filled sheet bonded with heat resistant thermosetting resins for insulating platens. This durable insulating composite offers high compressive strength and heat-resistance. It is easily cut and machined to close dimensional tolerances.

Glastherm reduces energy costs by reducing heat loss

This is the optimal insulation for curing presses and molds used for rubber, plastics and metals. It helps reduce heat loss and control temperature, reducing energy consumption by minimizing the flow of energy between heated and cooled zones. It has a thickness tolerance of ± .002 inches.


  • Thermal barrier for rubber molding, plastic and zinc die cast molds
  • Platen insulation

Learn about the grades available for different applications.


Our application engineers can help. With decades of experience in plastic material selection, we'll help you choose the optimal plastic for your application and budget.