Powder Coated Anodised Aluminium
Anodizing cannot peel off. You can then powder coat to color put in the oven for curing then put in service.
Chromic acid and phosphoric acid anodizing are more commonly used for aluminum that will subsequently be coated with an organic coating.
Powder coated anodised aluminium. Anodizing is better for aluminum in high traffic areas where the coating is subject to physical abuse and abrasive cleaners. But you may have problems with geting the desired colour on the surface of anodized aluminum part in the first pass. The coating is actually part of the metal.
In most cases for new anodized aluminum a light sanding of the surface and acetone wipe will suffice. Chromic acid offers superior corrosion resistance but also more environmental challenges. However older anodized aluminum will most likely need abrasive blasting.
Anodizing aluminum and powder coated aluminum difference anodizing it is an electrochemical process that converts the metal surface into a decorative durable corrosion resistant anodic oxide finish. Anodizing is harder than pvdf or feve. This finish is available in a huge range of colours from simple matt satin and gloss finishes to super matt super gloss and textured finishes.
Incorrect application of anodised and powder coatings can result in unsatisfactory outcomes such as filiform corrosion resembling. Powder coated aluminium installed at the start of a project will look the same as other powder coated battens installed towards the end of the project. Disadvantages of anodising and powder coating aluminium.
Anodizing uses an acid to create an anodic film on the part. Yes it could be powder coated. The acid may be chromic sulfuric or phosphoric.
Anodizing gives aluminum a deeper richer metallic appearance than is possible with organic coatings. Yes you can powder coat over anodized aluminum. It will not require the pre cleaning surface preparation processes like raw surface aluminum parts.