A customer for the defense industry asked Industrial Electroplating to apply a heavy thickness of zinc electroplating .001” min (25um) to formed sheet metal that would then be coated with CARC paint. The plating had to meet ASTM B633, Type V, Class Fe/Zn 25. The challenges were many:
- Meet the minimum thickness of plating along all areas of the part
- Ensure the heavy thickness had no adhesion problems
- Apply a clear passivate that not only would meet salt spray testing per ASTM 117 but also would allow the paint to adhere
- Meet the high-volume of production required
After meeting with suppliers, a high build passivate was chosen and tested and approved. At the same time, a prototype rack was tested and approved.
After processing prototypes, the process was approved. Because of the success of the project, the large defense contract approved Industrial Electroplating as a source for many other plating projects.
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