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Blösch AG

The Grenchen based contract coating centre has been in existence since the beginning of the 90s. We use state-of-the-art PLATIT coating machines and offer the full range of Platit PVD hard coatings.

Offer: Service classes (2)
Further services
Further services
Offer: Product classes (1)
Surface treatment
Contacts (1)
Image of   Roland Duttlinger

Roland Duttlinger


The coating of surfaces is a long-standing tradition at Blösch. It was back in 1947 that Walter Blösch began developing a special gold plating for jewellery and watches. The sheer superiority of this plating revolutionised the industry.

Blösch has been using vacuum technology since the 1970s to produce high-precision metallic and optical coatings. We respond to the changing market requirements with cutting-edge processes and continuous developments and improvements in pretreating, cleaning, handling and finishing.

Our coatings are applied in a vacuum furnace using arc PVD processes.
We coat microtools, but we also coat large tools with diameters of up to 600 mm. It is important to note that the steel which is to be coated should have a tempering temperature of about 500-550°C. Low-temperature processes can be offered on an optional basis for individual coatings.
We offer the full range of services on request: coating removal, pretreatment and finishing (blasting, polishing, brushing).

We also have our own pickup and drop-off service.


The Blösch AG is certified according to SN EN ISO 9001: 20015, SN EN ISO 14001: 20015 and Responsible Jewellery Council (RJC).

Certification / Standards
·    ISO 14001:2015
·    ISO 9001:2015
General Information
Company size
101-500 employees
Founded in
Grenchen, Switzerland
Moosstrasse 68 - 78
2540 Grenchen

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