Flame retardancy plays a particularly important role in many industries: in construction, in specialized textile applications, in aerospace, but also in the automotive sector. Its ongoing optimization is an important task for development departments. The problem here, however, is that fire protection must be re-examined after each adaptation in order to be continually used in established end products and the production processes.

The goal of product developers and engineers is therefore to ensure that product optimizations can be carried out efficiently, cost effectively and with a high level of service from suppliers.

It was precisely this type of optimization that our Lightweight Fillers department was able to demonstrate in an application-related workshop together with customers and our sales partner Stockmeier. The aim of the workshop was to formulate the MagSpheres® A-series into formulations in such a way that they can be applied without much effort to the materials brought by the customers and give them improved refractory properties.

Aerogel: Properties of the MagSpheres® A-series:

  • High heat resistance: up to approx. 1000°Celsius
  • Low tamped density: 0.05 - 0.16 g/cm3
  • Low thermal conductivity: 0.025 - 0.030 W/m*K
  • Very high insulation capacity due to high inner surface
  • High achievable pressure resistance
  • High inner surface (Knudsen effect)

Flame retardant on wood, textiles and cardboard

Customers from the construction, automotive and insulation sectors took the opportunity to have their materials coated with aerogel solutions in a live workshop and then to put them through extensive flame tests. A 1,000 μm wet film / 500 μm dry film layer was applied to the fiberglass textiles and cardboard. A 100 μm wet film layer was applied to spruce wood, followed by a 100 μm top coating after drying.

In the subsequent flame test, an approximately 1,300°C hot flame was directed onto the respective workpieces for 10 seconds. Due to the treatment with the MagSpheres® A-series, all materials withstood the flames or significantly inhibited the spread of smoldering spots around the treated surfaces.

Result: Even this standard aerogel formulation delivers very good results. With further customization based on the underlying materials and application areas, the demonstrated fire protection can be improved even further.

Videos of the flame test can be found here: MAGNESIA on YouTube



The next flame retardant workshop: September 2022

Already in September 2022, there will be another workshop on the topic of flame retardancy for your materials. Take the opportunity to learn about the fireproofing properties of aerogels from our MagSpheres® A-series in a practical workshop.

Sign up with our sales team now!

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Talk to us and let us advise you personally. For this purpose, we are also happy to provide you with a sample case for a joint virtual workshop without obligation and free of charge.

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