CPC® CASTING POWDER COATING
Surely you know this problem: During the production of castings, porous surface structures of the material lead to paint defects. Blowholes, outgassing, and flaws spoil the look of the coated casting. With our special CPC® technology, we can offer a proven solution for this.
CPC® Technology in Production
Aluminum, zinc or magnesium die castings are pretreated with a chromium-VI-free pretreatment which dissolves nearly all release agents from the castings, without staining the parts. Finally, the cast parts are provided with a layer featuring a special hybrid powder coating. Using this method, surface defects such as bubbles and outgassing can fully level out. This process results in a smooth, well-leveled and powder coated layer which is anchored in the component. Using our special CPC® technology, you can shorten the amount of in-house work. Grinding processes necessary after the casting process, can often be reduced to a minimum. Layer thicknesses of between 60 and 120 m.mu. m.mu., without added edge buildup, can increase the corrosion resistance of the finished part by a multiple.
CPC® technology in the application
This process is particularly prevalent in the automotive and solar industries. The reason: Excellent leveling of the rough casting surface for grip recesses, valve covers, solar housing or mirror bases. In the lacquering process, the CPC® coating (hybrid powder coating layer) is often the base coat for a visually demanding top-coat.