Powder Coating Process - Metal Finishing & Metal Coating
Metal Finishing & Metal Coating is a process that must be done properly the first time. Powder Coating is a job that you hire the most reputable professionals for. Call Commercial Finishing to ensure your coating needs are done right!
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Our 780 foot conveyor line is where we begin the powder coating process.
During this process, parts are visually checked for damage and rust. Any findings are then reported to the appropiate supervisors.
Pretreatment (All Metals)Pretreatment is a vital step in the preparation of metal prior to powder coating. Our high pressure washes include:
- One stage of multi-purpose alkalaine cleaner at 120ºF -180ºF for 3 minutes.
- One stage of dionized water for 1-1/2 minutes.
- One stage of iron phosphate
- 1 Stage of fresh dionized misting rinse.
This ensures a thoroughly clean and phosphate coated surface that provides excellent corrosion resistance and powder paint adhesion on all types of metal products. Parts then pass through a dry-off oven and pass through our spray booth where powder paint is electro-statically charged and applied to the parts to be painted. A special nozzle is charged with a high-voltage, low-amperage electrostatic current. The spray gun shoots an air/powder mixture, and when applied to the part, creates a lock between the part and the paint particles. The parts are then placed in a large baking oven, when cured with heat, the powder particles fuse together to create a single coat finish that cannot be achieved by any other method of coating. The resulting finish provides a wide range of performance properties, offering excellent resistance to corrosion, heat, impact, abrasion, fading from sunlight, and extreme weather. The molecules of the powder actually interlock providing a strong flexible film.
Commercial Finishing maintains a stock of many colors. We also can custom order any specialty color you request.
