Our Powder Coating Process
Powder coating materials are made from polymer resin systems combined with curative, leveling agents, flow modifiers, pigments, and other additives, all of which help improve the functional and aesthetic quality of the finish. These ingredients are melted, mixed, cooled, and ground to form a powder. Once the powder is ready, it can be used in powder coating operations.
At Pyramid Fab and Finish, our state-of-the-art facility features a fully automated line that is capable of handling small to very large components. Our powder coating process follows these steps:
- Pretreatment. The parts to be powder coated undergo a five-stage pretreatment process that includes multi-metal acidic cleaning and reverse osmosis.
- Drying and heating. The clean and treated parts are sent through a dedicated dry-off oven to improve powder adhesion.
- Powder coating application. The dried parts pass through the first paint booth, where 24 robotic spray guns apply the coating material to their surfaces. Once the coating material is applied, the coated parts pass through a custom-designed Faraday cage booth to ensure complete coverage.
- Curing. The coated parts then enter a dedicated cure oven, which provides precise temperature control depending on the powder.
- Inspection. Once each lot completes the coating and curing stages, it undergoes careful inspection and testing. Tests include gloss meter, scratch adhesion, chemical rub, and impact resistance.
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Advantages of Powder Coating
There are many advantages to using powder coating over other finishing processes, such as:
- Greater durability. Compared to liquid paints, powder coatings are more durable. They have greater resistance to chips, scratches, fading, and wear.
- Better eco-friendliness. Powder coating materials do not contain solvents, meaning no dangerous chemicals are released into the atmosphere.
- Shorter processing times. Compared to liquid paints, powder coatings dry/cure much faster, which saves time and space during processing operations.
- Cleaner operations. Powders are much cleaner to apply than wet paints. Additionally, it is much easier and faster to clean powder spray booths than wet paint booths.
Quality Powder Coating Services at Pyramid Fab and Finish
For all your powder coating needs, turn to the experts at Pyramid Fab and Finish! We offer powder coating capabilities for a variety of metal components, including metal boxes, enclosures, brackets, and frames. Whether you need flat, glossy, or textured finishes on aluminum, brass, copper, or steel parts, we’ve got you covered.
We also offer two critical in-house services to help reduce costs: the design and manufacture of custom racking systems for optimal line density and custom masking fixtures for complex masking requirements.
To learn more about our advanced powder coating capabilities, contact us today.
