Pourable insulation for complex shapes and cavities

FREEFLOW® is a pourable microporous insulation powder with excellent thermal properties, engineered to withstand peak temperatures of 1000 °C. This insulation powder is available in two types with silicon carbide or titanium dioxide as an opacifier.

FREEFLOW® is the material of choice for high temperature applications with complex shapes and cavities with demanding thermal specifications. It provides you with a reliable and sustainable solution for applications for which standard insulation materials are insufficient.

Further Information


  • Fuel cells;
  • Reformers;
  • Complex cavities and double wall systems


  • Extremely low thermal conductivity;
  • Suitable for complex 3D shapes;
  • Free from organic binders and respirable fibres;
  • Easy to install;
  • Non-combustible

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.