Glass fiber

Due to their needling, fiberglass-based products are much more resistant than AES or ASW / RCF-based seals.

550 °C Classification Temp.
Glass fiber
Tissue | Bands | Knitted sealing cords Twisted cords | Pac| Hoses | Mats | lankets | Gaskets | Moldings

Refractory Refractory

Subcategory: Refractory materials

Tags: Material


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    Temperature resistance

    High temperature resistance with application temperatures up to 500°C.

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    Thermal conductivity

    Low thermal conductivity, non-flammable and highly shock resistant.

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    Dimensional stability

    Good dimensional stability and flexibility.


    Due to their needling, fiberglass-based products are much more resistant than AES or ASW / RCF-based seals. However, it can only be used in a temperature range of up to 500 °C.

    Various products are manufactured based on this material:

    • tissue
    • packs
    • cords
    • bands
    • needled fleeces
    • papers


    • High temperature resistance
    • Low thermal conductivity
    • Highly Shock Resistant
    • Non-flammable
    • Good dimensional stability
    • High mechanical stability
    • Good chemical resistance
  • Downloads

    Hoffmann product catalog

    Refractory | Seals | Foundry supplies | Conveyor chains | Chesterton


  • K. Hoffmann GmbH

    K. Hoffmann GmbH

    Since 1986, K. Hoffmann GmbH has been at home as a production company in the high-temperature sector. Specializing in vermiculite as the main material, we offer board products and shaped parts as mass-produced and cost-oriented quality goods, as well as complex custom-made products for industrial and home use for thermal insulation and fire protection technology!

    As part of the SENN Group, we have access to a broad network of specialized companies and their associated experience and products, enabling us to meet every requirement!


ATTENTION - Sale to professionals only

K. Hoffmann GmbH

Your specialist for vermiculite, refractory and high-temperature resistant insulation solutions.

© K. Hoffmann GmbH

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