Surfix ZN 605 / 615 / 610 Description Application: Tri-cationic Zinc phosphating products for dip/spray applications. The Growel Advantage: This range of chemicals is suitable for processing Mild Steel, Galvanised Steel surface and Aluminium, the latter by using specific additives. This treatment converts metal surface to a nonmetallic, fine-crystal, Zinc phosphate coating, which inhibits corrosion. It also increases the adhesion and durability of CED primer and other paint finishes. get a quote