Phosphating
How does phosphating work?
Phosphating is a chemical process for treating the surface of steel whereby metal-phosphate layers with extremely low solubility are formed on the base material. The layers created are porous, absorbent and provide, without further treatment, anti- corrosive protection before the application of a powder coating. They are also suitable to be used as temporary corrosion protection if they treated with oil, water or passivation.
What are the main advantages of phosphating?
- It provides temporary anti-corrosive protection for steel, which needs to be stored for a short time before further treatment.
- Good adhesive properties for subsequent colour coating
- Improves the sliding properties when cold-forming steel
Provides good electrical insulation