Zinc flake coatings of the highest quality
Process: Zinc flake coating Application: Planetary dip centrifuge
Products: DELTA-PROTEKT®, DELTA®-SEAL, DELTA-TONE 9000
The zinc flake system, PREMIUM ZINCFLAKE BLACK, is characterised by an even layer thickness distribution and reliable corrosion protection for coating mass-produced goods. The system consist of a phosphate layer, required according to customer or standard specifications, several layers of a base coat (zinc flake coat), and one or more layers of an organic or inorganic top coat. PREMIUM ZINCFLAKE’s standard colours are black or silver.
Our modern centrifuge technology is particularly suited for small sized connectors and geometrically demanding articles. For connecting elements, the friction coefficient can be adjusted according to the international standards of the automotive industry.
• Excellent corrosion protection of > 720 hours in mechanically unloaded condition according to DIN EN ISO 9227 • Short coating time • Very suitable for complex geometries
Layer structure
The system consists of the metallic base material (substrate), which must be pre-treated before the actual coating process, for example, by alkaline cleaning, blasting or zinc phosphating. The zinc flake layer (base coat) is between 8 and 20 µm thick. The top coat can be organic or inorganic and applied at thicknesses between 1 and 3 µm. Depending on customer requirements and specifications, several coats of base coat as well as a top coat can be applied in the desired colour. Due to the logistical linkage between two autonomously controllable coating lines, the flexibility and speed of the coating process are unprecedented.
Corrosion protection
PREMIUM ZINCFLAKE BLACK from WHW meets all the usual corrosion protection requirements of the automotive industry for zinc flake layers. Due to our protection technology with a large item storage system, and most recently with robotic systems, the coating takes place under consideration of low goods handling with minimal drop heights and spillage events. So that the corrosion protection is applied where it is needed: with you and your customers.
