This paper describes low VOC coating systems successfully implemented and operating in two industrial branches.
For Light Alloy Wheels, the innovative coating process comprises ecofriendly chromium‐free surface pre‐treatment, epoxy polyester powder primer, water‐borne base coat and acrylate powder clear coat.
The coating process as an example for agricultural machinery includes iron phosphatizing surface pre‐treatment for steel substrates; the coating system itself consists of a water‐borne stove‐type dip priming operation (for all objects). Finish coat type (Plant I):
2‐component water‐borne PUR top coat; (Plant II): TGIC‐free polyester powder top coat.
These new coating systems have proved successful in existing series production. All technical requirements and the provisions of the VOC Regulations are fully complied with.
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