K. Hoffmann GmbH

We offer refractory insulation solutions for a wide range of industries and applications up to 1600 °C.

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For over 40 years, our company has been manufacturing high-temperature resistant boards, pressed and milled shaped parts from Vermiculite . Due to its special properties, vermiculite is particularly suitable as a lightweight insulation material and is characterised by a temperature resistance of up to 1100 °C.

If you are also looking for a sustainable insulation material without health concerns, please contact us.

Our Portfolio

We belong to

SENN Gruppe

Since 2023 we are part of the Senn Gruppe.

The SENN Gruppe is the umbrella brand of Senn Beteiligungs GmbH. The group consists of various companies operating in the field of industrial supplies and was founded in 2001. Within the group we have the possibility to offer you everything from one source. With a click on the button you can learn more about our products and product ranges.


Customer satisfaction

As a family company, the satisfaction of our customers is the highest priority.


Integrated into a strong corporate network, we plan and act on a long-term basis.

We are here for you

Our business hours are from Monday to Friday from 08:00 to 16:00 CET.

Your vermiculite specialist since 1986.


K. Hoffmann product catalog

Seals | Foundry supplies | Refractory | Conveyor chains | Metal Construction | Bearings | Logistics



As a family business, quality is our top priority.