Phosphating

Phosphating processes are a group of Conversion Coating processes that can be used to treat both ferrous and non-ferrous metals, to a varying degree.

Through the use of chemical solutions either applied by spray or submersion techniques, the surface of a component is transformed into a crystalline structure of phosphates.

The phosphates that form are extremely hard and in most cases, highly porous. Phosphating can be achieved on aluminium, galvanised surfaces, bronzes and bare steels, amongst others.

Phosphate coatings have benefits ranging from corrosion to abrasion resistance. Iron and Zinc Phosphate coatings are typically used as effective pre-treatments for further coating processes, for example Powder Coating. Manganese Phosphating on the other hand is commonly used as a final coating for components under high wear and abrasion.

The variations of Phosphating include:
• Zinc Phosphating
• Manganese Phosphating
• Iron Phosphating