finishing-and-treatment-manufacturing-processes > Manganese Phosphating

Manganese Phosphate Coating, also known as "Parkerizing" is a Conversion Coating process by which the surface of a ferrous metal is transformed into a crystalline structure of phosphates through the use of chemical solutions either applied by spray or submersion techniques.

Manganese Phosphating forms a hard-crystalline structure providing excellent wear and corrosion protection. Manganese Phosphate Coating is commonly used as a treatment for engine and gearbox components, where abrasion and corrosion resistance are required as the coating and component wears.

Manganese Phosphating doesn’t require further surface treatment to provide its full corrosion resistance. However, an oiling process enables the full benefit of lubricity to be realised.