Raw, Primed & Galvanised Steel Finishes

Zinc phosphate-rich paint is applied to steel as part of the priming process to produce a corrosion-resistant layer.

By preventing the production of anodes, which are commonly perceived as rust, primed finishes and coatings can stop steel from rusting. The paint’s component decomposes into phosphate ions (PO43-) and zinc ions (Zn2+) when it comes into contact with water. Zinc ions further prevent corrosion, whereas phosphate ions react with steel to render it passive. The paint should be placed at a thickness of 125 microns for optimal protection, which often calls for two layers. Paint can be applied directly on the steel using a roller. Priming effectively inhibits rust, particularly in indoor applications, although it is less successful in severe outside environments.