Pourable microporous insulation granules

The insulation for complex shapes and cavities

FREEFLOW® is a pourable microporous insulation powder with excellent thermal properties engineered to withstand peak temperatures of 1,000 °C. FREEFLOW® is the material of choice for high temperature applications with complex shapes and cavities.

How you can benefit from FREEFLOW®

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

FREEFLOW® is most commonly used for

  • Fuel cells
  • Reformers
  • Complex cavities and double walls systems
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Download Product Documentation

Discover all characteristics and specifications of FREEFLOW®.

Variants of FREEFLOW®


Pourable microporous powder with tatanium dioxide as an opacifier.


Pourable microporous powder with silicon carbide as opacifier.

Our Services

  • Analysis, calculations and simulations

    Meet all your fire, thermal, and acoustic requirements thanks to our full analysis, calculations, and simulation services.

  • Fire and performance testing

    Verify your solution’s efficiency with our in-house fire and thermal performance testing or take advantage of our state-of-the-art test labs.

  • Product selection and design

    We listen to your requirements and select the perfect match for the job from our comprehensive range of products.

  • Production and installation support

    Choose between pre-installed solutions, supervised production runs, small batch delivery or high-volume production.

  • Application or system design

    After defining the specifications, we will design a solution that fits your specific needs and develop a prototype.

  • Workshop services

    Our in-house workshops offer CNC routing and cutting, water jet and laser cutting, coating, shrink-wrapping, heat-sealing under vacuum, cutting and stamping of laminates, and hand manipulation.

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Curious to see what we can do for you? Do you have a challenge for us to solve?




Thin and lightweight insulation

PROMALIGHT® microporous insulation boards and custom-made machined parts have an excellent thermal performance, ideally suited for high temperature applications with limited available space. PROMALIGHT® is available in various coverings (PE and aluminium foil, and mica).