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Polymer Distribution
Pyrotek Insural® 140 Insulating Refractory Shapes for Aluminum
Categories: Ceramic; Oxide; Silicon Oxide

Material Notes: Insural® 140 Precast Shapes are designed for the containment of molten aluminum in hot top modules (cross feeder) and trough/launder applications.


  • Near zero expansion avoids gaps at the joints
  • Very resistant to cracking with thermal cycling
  • Low density, highly insulating
  • Not wetted by molten aluminum, for easy skull removal
  • Hardness which runs throughout the thickness reduces risk of inclusions

Information provided by Pyrotek.

Available Properties
  • Density
  • Modulus of Rupture
  • Modulus of Rupture
  • Compressive Strength
  • CTE, linear
  • Thermal Conductivity, hot face 548°C, cold face 350°C, mean - 449°C
  • Thermal Conductivity, hot face 744°C, cold face 470°C, mean - 607°C
  • Thermal Conductivity, hot face 842°C, cold face 529°C, mean - 686°C
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Manufacturer Notes:
Pyrotek, Inc.

Category Notes

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Master Bond adhesives
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