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Old April 3, 2019, 06:26 AM   #11
Senior Member
Join Date: November 21, 2013
Location: New Hampshire
Posts: 1,328
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.
"To be old an wise you must have been young and stupid"

Last edited by Road_Clam; April 3, 2019 at 09:58 AM.
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