Powder coating offers a superior alternative to liquid spray applications in both aethetic and functional forms. Powder coating is far superior to liquid spray applications in many areas including solvent resistance, impact resistance, weatherability, and most importantly cost. Also, unlike standard paints it will not fade or absorb oil and grease because of its non pourus structure. In most cases you can simply spray on windex, wipe down with a soft terry clothe towel, and that is all the maintance needed. If you like color and want it to last, aethetic and functional powder coating is the proper choice.
Every part powder coated by us goes through a thorough process of hot tank aqueous degreasing, followed by media blasting, then in some cases chemical etching and finally coating. All of our parts go through this process unless previously discussed beforehand for instance with batch work processing.
First, the part is degreased in a aqueous chemical solution to remove all built up greases and sludge typically found in valve covers and intake manifolds.
Next, the part is media blasted using coal slag to removing existing paint, surface contaminents, oxidation and rust. Using this angular abrasive not only removes unwanted material, it also mechanically etches the substrate increasing surface area, thus giving the powder more to grab onto. All parts are blasted to a white metal form, something other companies fail to do which can shorten the long term durability of your coating.
In some cases the peice is then pretreated with a chemical solution which chemically etches the substrate promoting even better adhesion, or wiped down with a solvent wash to eliminate any oils that may have contaminated the peice, such as oils from your hands.
The part is then masked off and racked for coating. All threaded holes are plugged, machined areas are taped off, and the part is hung in a posistion that once cured no marks can be noticed.
If the part is a pourous metal, typically casted parts, it is sent to the curing oven to preheat where trapped inside air is released to prevent pock marks on the final finish. This process also helps burn up any contaminents that were possibly missed with the solvent wash.
Finally, the peices are cooled, blown off with clean air, and sprayed with the desired powder. Application of the powder is one of the most important parts of the coating process. Different formulations act differently, and a experienced applicator can apply the powder in the proper film thickness and process to ensure a top quality final finish.
Please feel free to contact us for free estimates!
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