I do CNC machining and I frequently deal with ultrasonic cleaning. U/S cleaning bare metals works amazingly well. U/S cleaning coated metals you need to present caution. U/S WILL strip coating off the metal if left in the process for extended periods. We U/S clean anodized coating which is about .001" of buildup and we only clean for about an hour. Years ago an employee left the U/S cleaner on overnight with anodized parts in the bath and the parts were completely stripped of the coating. I can't comment on parkerized or cerakoated type coatings but from what I know , I advise don't do it, or if you must stay right on top of the time and frequently check the surface.
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Last edited by Road_Clam; April 3, 2019 at 09:58 AM.
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