Process

SERVICE OVERVIEW

How is a zinc flake system created?

A zinc flake coating is a modular system consisting of a basecoat and a topcoat. The individual components can be combined to precisely satisfy characteristic requirements (specific coefficient of friction, chemical resistances etc).

  • Basecoat: The basecoat is the zinc flake coating and is applied directly to the substrate to be treated. This base layer determines the corrosion protection properties. The zinc content provides a high level of cathodic corrosion protection. For bulk materials, such as thread-rolling screws, application by dip spin process is typical, for larger components the spraying process (manual or by robots) is recommended.

 

  • Topcoat: The topcoat complements the properties of the basecoat, and gives the coating additional multifunctional properties. In addition to corrosion protection, the topcoat protects against chemical and mechanical impacts and is responsible for the:
    • Requirements of coefficient of friction
    • media resistance
    • weathering resistance
    • appearance
    • and other individual requirements
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Application method

Immersion centrifugal process (bulk material in baskets)

Submerged centrifugal rack process

Spray application (on racks, individual parts or bulk material in rotating drums)

Dip drawing