Mold and Platen Insulators

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Thermalate Advantages:

  • Low Thermal Conductivity:  Saves energy and allows for more precise temperature control
  • High Heat Resistance: Thermalate is designed to operate at temperatures up to 550°F
  • High compressive strength: Thermalate will not take a compressive strength “set”, causing mold alignment problems, when subjected to extremely high molding pressures
  • Tough and durable:  More durable than Mica or Asbestos materials
  • Resist Oils and Fluids: Other absorbent insulators,  can deteriorate or alter their thermal conductivity


Standard Sheet Sizes:

  • 36″ x 72″
  • 48″ x 96″
  • Thermalate sheets up to ½” thick are sanded on both sides to a tolerance of +/-0 .002″.
  • Thicknesses over ½” are sanded on both sides to a tolerance of +/- 0.005″.
  • Custom sheet sizes and colors are available upon request .



We are a major fabricator that provides finished Mold Platen to your drawings specs.  With our complete machine shop, your insulating plates will be ready to bolt on with no further machining. 


Why Thermal Insulation:

When installed, Thermalate sheets will decrease heat transfer between the Mold and Press Platens. This results in a more even temperature throughout the process. Press insulation is a particularly demanding application for any material since it is subjected to high temperatures and molding pressures, as well as exposure to Oils and Hydraulic Fluids.

Our Thermalate grades are Glass Mat reinforced Thermoset Polyester laminates. Their physical properties include high heat resistance, high compressive set, low thermal conductivity, and low moisture absorption,  These laminates provide for more precise temperature control as well as uniformity of temperature, reducing or eliminating “Cold Spots” in a mold.



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