Talk to our experts: +49 6593 / 2108–100

Surface treatment
BSH coating

We apply an anti-corrosion coating to our components

We use various methods to protect the surfaces of our products against external influences such as corrosion. Depending on the material and purpose, there are various options to choose from:

  • Galvanic surface coating (galvanising, zinc nickel, zinc iron)
  • Passivation
  • Sealing
  • Lubrication to reduce friction
  • Zinc-flake coating (dipping, centrifuging and baking)
  • Phosphate coating (temporary corrosion protection for use in oily environments)
  • Coppering (for high temperature applications or electrical contact)
  • Chemical nickel plating
  • Anodising of aluminium
  • Preservation by oil

Your benefits

  1. Adaptation of surface properties to the intended purpose
  2. Protection of surfaces against corrosion

We are here for you

Contact us

Our Sales Team

Our Sales Team

Applications development

Applications development

HR department

HR department


Bilstein & Siekermann GmbH + Co. KG
Industriestraße 1
D-54576 Hillesheim

Video conferencing

In light of the current situation, we will be happy to discuss your topics in a video conference. To arrange an appointment, please contact us and tell us what you would like to discuss at info(at) You will receive a link to the meeting by email.

We have won awards

Awards are a mark of quality. See for yourself!

  • German Brand Award 2019
  • Innovator des Jahres 2018
  • TOP 100 2017
  • Großer Preis der Mittelstandes
  • Beste Arbeitgeber Marke 2019
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