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We offer several powder coating finishes that improve the strength and wear-resistance of your metal parts. Powder coating is compatible with all metals and available in glossy or matte gloss.
Powder coating is the process of applying protective coatings to surfaces by applying dry, electrostastically charged powders of typically thermoset or thermoplastic polymer onto a grounded surface using a specialized spray gun, forming a thin and even coat. Once applied, the coated surface is heated and/or cured to fuse the powder into a durable finish. Powder coating protects metals surfaces from corrosion, scratches, and other types of damage, and also provides a vibrant color finish.
Surface preparation | Colors* | Glossiness | Cosmetic availability | Thickness | Visual appearance |
---|---|---|---|---|---|
As machined (Ra 3.2μm / Ra 126μin) | White, Black, RAL and Pantone | Glossy (Above 20 GU) | No | 50μm to 150μm | Parts are powder coated directly after machining. |
As machined (Ra 3.2μm / Ra 126μin) | White, Black, RAL and Pantone | Matte (Below 20 GU) | No | 50μm to 150μm | Parts are powder coated directly after machining. |
Max: 12 ft
Max: 6 ft
Max: 6 ft
Max: 2,000 lb
Powder coating is a process in which a dry powder paint (either a thermoplastic or thermoset polymer) is applied to a metal surface using electrostatic application. Unlike traditional liquid paint, powder coating does not need a solvent to keep the binder and filler of the paint in liquid suspension. This allows for application of thicker coatings without running or sagging, and the coatings are also tougher as a result.
The powder coating process starts off by electrically grounding the part to be painted, which gives it a net negative charge. After grounding, the paint is sprayed at the part using a corona gun, which applies a positive charge to the powder. The polarization of the two components causes the powder to stick to the metal, where it will remain so long as it is undisturbed.
After the powder has reached a specified thickness on the part, it is cured into a polymeric film using elevated temperatures (~200°C), such as with a convection oven. Thermosetting polymers will crosslink during the curing process to improve performance, but thermoplastic varieties simply flow while heated to form the final coating.
Powder coating is a strong, wear-resistant surface finish that is compatible with all metal materials.
Here’s how to apply powder coating:
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