Zinc flake coating
Zinc flake coating offers high performance corrosion protection for exacting bulk components. It is applied using a so-called dip-spinning process.
The layer is made up of a base coat and a top coat.
The inorganic base coat is made up of zinc and aluminium flakes. The zinc gives cathodic corrosion protection.
What is more, the zinc and aluminium flakes produced in the dry film form a barrier to reduce the impact of corrosive media including oxygen, electrolytes, etc. thereby enhancing the life of the complete protective system.
Both organic and inorganic coating systems are available for the top coat, each offering excellent protection from mechanical and chemical impact. Protection against contact corrosion is enhanced and abrasion resistance is clearly increased. Integrated dry film lubricants (GZ) help achieve defined friction coefficients.
When combined with other processes, the zinc flake system offers excellent protection against corrosion as well as resistance to chemicals and is clearly superior to comparable systems. In a salt spray test, depending on the component geometry and material, over 720 hours of protection from corrosion can be achieved.
The baking temperatures vary from 180º to 250°C depending on the manufacturer and product. Pre-treatment includes alkaline degreasing and zinc phosphating.
Downloads:
Datasheet of zinc flake coating (36.24 kb) Our specifications can be found under Customers > Specifications.