Quality Zinc & Iron Phosphating by Profin in and around the Midlands

What is Zinc/Iron Phosphating and how does it work?

Zinc phosphate coating is formed by crystallisation on the surface by a chemical reaction
and is applied by spray or immersion. It’s used in preparation for good adhesion for most
types of finishing processes.

Iron phosphate deposits a fine crystalline phosphate surface at around 1 ½ to 2 grams/M². The phosphate is applied by a spray process through a high pressure washer which has the added advantage of cleaning the parts as well as applying the phosphate.

The chemical used is a liquid material which is a combined coater (heavier coating weight phosphate) and cleaner solution designed to simultaneously degrease and pre-treat ferrous substrates prior to painting.

Trication Zinc Phosphate deposits a fine crystalline zinc phosphate at around 1½  -2 grams/ M². The Trication formula comprises a mixture of zinc, manganese and nickel to make up the phosphate structure. The Nickel content is expressly excluded from the substances of concern list in the ‘End of Vehicle Life Directive – 200/53/EC’ This is due to the fact that currently there is no better way to phosphate automotive parts.

What are the benefits of using Zinc/Iron Phosphating?

  • Phosphate pre-treatment is effective on a clean metal substrate
  • A conversion coating creates a good barrier to inhibit oxidation
  • Creates stronger adhesion for the paint