Structural calcium silicate board

PROMATECT®-MST are self-supporting, rigid calcium silicate boards with a very low thermal conductivity, capable of withstanding peak temperatures of 1000 °C. The low shrinkage and high structural strength of these boards provide an effective and stable thermal insulation solution for a wide range of industrial applications.

As a rigid, machinable insulation material, PROMATECT®-MST is often used as thermal break in process plants and single-skin insulation in ovens and dryers.

Further Information


  • Load bearing pipe supports;
  • Heat shields;
  • Structural thermal breaks;
  • Furnace bottom boards


  • Low thermal conductivity;
  • High mechanical strength;
  • Resistance to moisture and chemicals;
  • Excellent machinability to close tolerances;
  • Strong and durable

Please note
All physical and mechanical values are averages based on standard production and tested according to internal procedures. The typical values are given for guidance. The figures can change dependent on the test methods used. If a particular value is of prime importance for a specification, please consult Promat Technical Department.