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About Hydrophon


Hydrophon Kunststofftechnik GmbH was founded in 1996 as one-man business and has been growing ever since.

In order to meet the ever-increasing demands both in the production area and in the area of logistics, we moved into a new production site in Welschen-Ennest in 2007.

Only 9 years later we opened our second plant in Welschen-Ennest.

After more than 20 years of experience, we are one of the world's leading manufacturers in the field of foam plastic sealing. Our customers appreciate our above-average know-how and our customer-oriented thinking and acting. To meet these demands in the future as well we chose a new path in 2019 and separated from the automotive industry.


Hydrophon Kunststofftechnik GmbH was founded with the idea to make things better and easier. This basic idea has not changed until to this day. We always stand for innovation, sustainability and flexibility. From idea to system solution, we are constantly in contact with our customers. We are always looking for new challenges.

About us
Kunststofftechnik GmbH

Zum Eulenbruch 5
57399 Kirchhundem, Germany

Phone: +49 2764 37799-00
Fax: +49 2764 37799-01