Powder Coating Clear Anodized Aluminum
Our expert team is highly knowledgeable in the anodizing process and guarantees high quality aluminum parts to our customers. But you may have problems with geting the desired colour on the surface of anodized aluminum part in the first pass.
Clear anodize turning yellow after powder coating july 2 2015.
Powder coating clear anodized aluminum. We turn a cone shaped part that is clear anodized then the inside of the part is masked then the outside of the part is powder coated. Chromic acid and phosphoric acid anodizing are more commonly used for aluminum that will subsequently be coated with an organic coating. The performance of an organic coating paints or powders depends on the pretreatment resin and pigmentation.
Resins are often the weak link in an organic coating system. A clear powder coat is okay or polishing the aluminum and clear coating it. This last option would be the brightest by far but is difficult and very expensive and must be done perfectly and the wheels are then quite delicate.
They should be reasonably bright but won t rival chrome plating. Anodizing uses an acid to create an anodic film on the part. At rapiddirect anodizing is one of our integral finishing solutions for metal parts along with bead blasting brushing polishing electroplating powder coating and painting.
Chromic acid offers superior corrosion resistance but also more environmental challenges. The acid may be chromic sulfuric or phosphoric. Yes you can powder coat over anodized aluminum.
As an inspector qa in the machine shop industry for 20 years i m now coming across a new problem. In most cases for new anodized aluminum a light sanding of the surface and acetone wipe will suffice. Anodizing is done in different batches hence there are chances of color variation on the substrate.
However older anodized aluminum will most likely need abrasive blasting. With aluminum the pretreatment is of utmost importance. These coatings require no clear coat apply in one coat and achieve a beautiful low gloss smooth finish suitable for any architectural commercial or residential project.
Over 100 years ago an electrochemical process was invented to give a protective coating of aluminum oxide to aluminum surfaces. Powder coating is the process of applying a decorative and protective finish on the aluminum profile or any other metal through an electrostatically charged powder which is sprayed on the aluminum. This is why organic coatings for aluminum should be factory applied.
This is known as anodizing. The tci aama 2604 anodized line has six colors developed to match the six most popular anodized offerings in the market and have a 60 gloss range of 5 15. Depending on the thickness of the coating applied the length of time it lasts varies.
Yes it could be powder coated. It will not require the pre cleaning surface preparation processes like raw surface aluminum parts.