New surface protection for PVD applications

EPG AG has developed an "invisible" coating solution that can reliably protect PVD surfaces. By spray application a transparent sol-gel layer is applied directly to the PVD surface and after thermal densification a very thin glassy coating is formed which shows good adhesion to the PVD substrate and at the same time has strong mechanical properties.
EPG AG has already completely replaced the PVD treatment for coloring for customers with specific color requirements; further colors are currently being qualified for customers. The focus of these developments is on the numerous color requirements of our customers in combination with their resistance to external influences. EPG AG thus offers an economical alternative to the usual two-layer process of PVD coating. Also the larger color deviations, which are partly present in the PVD, can be avoided as far as possible with the EPG process, because a color comparison takes place before the production release and does not vary afterwards any more.

Detailed information on PVD replacement can be found here in the JOT article (No. 4/2019):

(pdf in German language)