Manfred Herweg controls the electrical heating elements in an industrial furnace.

High-temperature insulation boards (PCW) for application temperatures up to 1800°C

UltraBoard insulates electrically heated industrial and laboratory furnaces up to an application temperature of 1800°C. Made of polycrystalline mullite/alumina wool (PCW), the parts are a high-quality alternative for insulations of aluminosilicate wool (ASW), also known as ceramic fibre (RCF). Shot-free quality, minimal shrinkage and high form stability of our material ensure a long service life and make it particularly economically efficient. Optionally, a particularly low-dust quality can be delivered as well.

Your benefits with UltraBoard:

  • Low heat conductivity
  • Long service life due to low shrinkage
  • Simple processing (homogeneous structure)
  • Density: up to 700kg/m³
  • Particularly low-dust quality for special applications

The standard sizes for the insulation boards are 900mm x 600mm. They are available in thicknesses 20, 25, 40, 50 and 100mm. With UltraBoard, we produce complete furnace linings to size according to your wishes.


Your Enquiry


Dr. Katarzyna Linn
Chief Executive Officer (CEO)

Phone: +49 (0) 241-93677-57
Fax: +49 (0) 241-93677-15

Meeting online

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+49 (0) 241 93677-0