Prepaint Treatment

Pretreatment of metal surfaces prior to wet paint and powder coating is a Chemetall speciality. In fact, it could be said that Chemetall has written the book. In Australia, Chemetall (Australasia) Pty Ltd is without doubt the market leader wherever there is a need to condition metal surfaces prior to the application of an organic film. We have hundreds of satisfied customers, across all industries, including:

  • Automotive
  • Aluminium
  • Job coaters
  • General industry

Chemetall has many global, well known pretreatment branding names. Some examples are:

  • Oakite
  • Cryscoat
  • Gardobond
  • Chromicoat
  • Gardal
  • Ecoseal
  • Oxsilan

We have pretreatment processes suited to almost any substrate including:

  • Steel
  • Stainless steel
  • Aluminium
  • Magnesium
  • Zinc coated steel
  • Alloy coated steel

Chemetall has a huge range of pretreatment options from conventional processes such as:

  • Iron phosphate
  • Zinc phosphate
  • Chrome chromate

to the latest, technologically advanced formulations that address market demands for more environmentally friendly and safer applications:

  • Latest generation iron and zinc phosphates
  • Chrome 3
  • Chrome free
  • Alkaline oxide

Our fully equipped laboratory in Melbourne is staffed by a team of experienced and expert surface finishing chemists who are dedicated to provide the best possible customer support. We can certainly assist with process and plant design and can even simulate on-line conditions with our laboratory scale pilot plant. We even have a powder coating facility.


To support our customers in verifying the performance of our processes, in their production lines, we offer a range of in-house testing capabilities including:

  • Acetic Acid Salt Spray
  • Neutral Salt Spray
  • Q Fog Cyclic Corrosion
  • Humidity
  • Permeability
  • X Ray Fluorescence analysis
  • ICP solution analysis
  • Wet Chemistry solution testing

Chemetall’s processing systems will offer conformance to various performance specifications including:

  • Australian Standards
    • AS 4506
    • AS 3715
  • Qualicoat
  • GSB
  • AAMA

We can also supply systems that will conform to the requirements of:

  • RoHS

Chemetall is able to provide a tailored pretreatment option to suit almost any customer requirement. In the process design, each recommendation will take into account all of the contributing factors:

  • Substrate to be treated
  • Surface contamination
  • Application methods
  • Paint system
  • Performance specifications
  • Compliance specifications
  • Available funding

At Chemetall, quality control of production batches is a high priority, with full batch traceability and Certificates of Conformance available on request for all Chemetall products.


No matter what the substrate, the paint system, the application method or the specification to be met, Chemetall can help design a specific process to meet these requirements. To ensure the best outcome, please contact Chemetall for specific product and process advice and recommendations.