i) SURPHOS- Phosphating chemicals for oil coating
Surphos is a phosphating chemical for oiling surface. It produces phosphate coating on cleaned steel and zinc surface. The components are phosphate coated and sealed with suitable rust preventive oil. Surphos is ideally suited for use on moving parts such as piston rings, gears and crank shaft. It forms a coating integral with the metal and when oiled it will be used as bearing surface which holds the oil between the moving parts.
Ø zinc based phosphate coating
Ø manganese based phosphate coating
