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Ted Mooney, P.E. RET
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for Metal Finishing 1989-2025
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Is this Satin Chrome or Paint?
We are, like many, importers of Peoples Republic of China made goods.
A recent arrival was spec'd as satin chrome. The surface is so matte in appearance you could believe it to be a powder coat.
The back side of the item gives the appearance of a metal plated over unfinished, cold rolled stock. Some areas are blotched, others fairly shiny. The inside corners show rust.
What is a simple, sure fire test to determine whether this is merely a low luster, satin chrome or powder coat?
Buyer - Cleveland, Ohio, USA
January 28, 2010
A. Hi, Irwin. I don't quite understand the question in that the parts are utterly unsatisfactory, so why does it matter? :-)
But you can microsection them, give them a quick dip in muriatic acid to strip the chrome, or do an x-ray fluorescence test. Good luck.
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
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Well I suppose if it scratches very easily with a common screw driver its not chrome. If its hard to scratch its probably chrome. The simplest test I can think of.  Rod Henrickson gunsmith - Edmonton, Alberta, Canada Paint, no matter how well cured, is plastic and is softer. Real decorative chrome (in fact nickel+chrome) is a hard metallic surface. You can scratch with a sharp knife. Guillermo MarrufoMonterrey, NL, Mexico |
A simple and non-destructive test can be done using an electrical multimeter on an ohms range. A plastic will not conduct current.
Harry Parkes
- Birmingham, UK
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