Vermiculite bagged goods

Vermiculite is a naturally occurring mineral that is used both as raw vermiculite in various grain sizes and as a further processed material.

1150 °C Classification Temp.
Bagged goods
Grain sizes
Superfine 1 mm | Fine 2 mm | Medium 4 mm | Large > 8 mm

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    Technically excellent and cost-oriented solution.

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    Light, non-toxic, fiber-free, odorless and acid-resistant.

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    Depending on the product variation, application temperatures up to 1100 ° C.


    Vermiculite is a naturally occurring mineral that is used both as raw vermiculite in various grain sizes and as a further processed material. Our vermiculite bagged goods are available in four grain sizes. For the production of panels and molded parts, exfoliated vermiculite is mixed with special binders, if necessary with other additives (e.g. ash, lime), and pressed into panels or molded parts and then dried.


    • Technically excellent
    • Cost-oriented solution
    • Light
    • Nontoxic
    • Fiber free
    • Odorless
    • Acid resistant
    • Refractory



    Physical properties
    pH value ca. 7,5
    Sintering temperature (°C) 1260
    Melting point (°C) 1315
    Thermal conductivity 0,07 W/mK (DIN 4108)
    Bulk density 80 -125 g/Ltr (DIN 1060)


    SiO2: 35,00 – 41,00 %
    Al2O3: 6,00 -9,50 %
    Fe2O3 6,00 – 9,50 %
    MgO 21,50 – 25,50 %
    CaO 2,00 – 6,00 %
    K2O 3,00 – 6,00 %
    TiO2 0,60 – 1,40 %

    Product variations

    Vermiculite bagged goods
    Plates | VIREboard
    Vermiculite bagged goods
    Paper | VIREpaper
    Vermiculite bagged goods
    Pressed parts
    Vermiculite bagged goods
    CNC milled parts
  • Downloads

    Data sheet Vermiculite bagged goods

    Product properties, typical applications and availabilities.


    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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