Zinc Oxide Production

Hazardous incidents

currently no warning according to StIV


About Us

Since 1969 we have been producing Zinc Oxide of best quality.
Our standard assortment contains three varieties of Zinc Oxide, but as a family-owned company, we can offer a highly personalised service tailored to meet your individual requirements.
Our product stands out of competitive brands because of its higher level of flowability. This ease of flow prevents blockage of in-plant transportation pipes.
Our focus lies not only on quality and reliability, but also on making sure to work sustainably and with environmental awareness.
We strive for a 100 % security of supply and adherence to delivery dates at all times.
In order to maintain the striking quality of our Zinc Oxide we are ISO 9001 and ISO 14001-certified, and REACH registered.

For more information about our product or services, please contact us.

ISO Certificates


Main characteristic for all products: higher flowability

general specifications
%ZnO min 99,5 99,8 99,8
m²/g surf. 4,0 - 6,0 5,5 - 6,5 8,0 - 10,0


All of our packaging variations are available on wood or plastic, as well as single-use or reusable pallets, according to customer requirements.

Paper Bags

25 kg/bag
up to 825 kg/pallet

25kg Holz
Big Bags

~ 800 - 1.000 kg

Silo / Bulk

up to 24.000 kg

Silo ZnO Zinc Oxide


We are processing zinc containing rawmaterials in our production.
Please contact us.


Johann & Ingrid Wiehart


Johannes Wiehart

Chief Engineer

Harald Wiehart

Chief Operating Officer
Purchasing / Sales

Dr. Barbara Berger-Wiehart

Chief Financial Officer
Purchasing / Sales

Sonja Nekolny

Administration / Logistics

Benjamin Berger


Lisa Wiehart, BSc

Production Management

Alice Berger

Purchasing / Sales / Administration

Rafael Wiehart

Purchasing / Sales

Sabine Janko



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Schottenfeldgasse 82/9
A - 1070 Wien
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P: +43 1 523 8366

Pernhofen 5
A - 2064 Wulzeshofen
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P: +43 2527 4050