Coating Systems

If the properties of a single coating treatment do not fulfil all the requirements of a certain component, coating systems (also known as duplex systems or duplex treatments) can be a viable solution. In the galvanising industry, duplex stands for the combination of zinc electroplating and one or more coatings; however, even coating systems without zinc are possible.

Numerous combination possibilities for different functional and optical requirements for example:

Zinc, Zinc-nickel or Zinc-iron with CDC

The combination of functional surfaces such as zinc, zinc-nickel or zinc-iron with CDC is especially popular in the automobile industry:
- CDC top layer for a visually attractive, even black surface Zinc electroplating for high corrosion protection 
- Durable, abrasive-resistant zinc- or zinc-nickel surface prevents rust creepage
- The coating system withstands much higher stresses than the individual systems
- Distinctly higher corrosion resistance than simple zn- or zn-ni systems
- Examples of usage: locking parts for automobile sun roofs, parts for panorama roofs, etc.

CDP and powder

A combination of CDC and powder also creates added value:
- Visual improvement of the coating system achieved through powder coating
- All colours of the RAL-spectrum can be implemented
- Depending on the colour chosen, the powder coating may be UV-resistant
- Powder coating – even if light colours are chosen – completely covers black CDP layer
- CDP layer ensures higher corrosion protection, especially at the edges

  1. Only one contact for all individual coatings within your chosen coating system.
  2. Less logistics
  3. Better coordination between process steps
  4. Each individual coating is chosen to work optimally with the others and with your component.
  • Automobile industry, utility vehicles
  • Cycling industry (scooters, motorcycles, moppets)
  • Farming vehicles (tractors, etc.)
  • Gardening and forestry equipment
  • Electric industry (casings, electrical cabinets for outdoors: CDP + powder)

Morris Krych

Phone: +49-2772-603-38
Fax: +49-2772-603-66
E-Mail: 

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