Eliminating pretreatment steps: Are cleaning and dry-off absolutely necessary when prepping steel prior to powder coating?
Q: I have a question regarding cleaning steel before powder coating. We powder coat mainly welded parts made with hot-rolled steel. Our paint line is composed of steps: 1. A shot blaster 2. 5 stage cleaning stations (alkaline clean, rinse, phosphate, rinse,...Reducing rejects: How can we address defects in powder coatings for automotive windows?
Q: We are an automobile aluminum window manufacturer. We use aluminum extrusions for making windows, and these frames are black epoxy powder coated. In our three decades of business experience, it is a common phenomenon that many frames are rejected due to bad powder...