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Old 31-01-2014, 12:55   #16
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Location: Western Wisconsin
Boat: O’Day Daysailer II, 17'
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Re: Removing Chrome From Bronze

Quote:
Originally Posted by Noreastern View Post
Is this "coke" solution for real? Has anyone here tried it?
Probably, Coke contains phosphoric acid; however, the method used in some electroplating shops is a 5% solution of hydrochloric acid.


By the way, what are you going to do after you strip the chrome? The chrome decorative plating is there to protect the winch metal from corrosion. Chrome decorative plating consists of three layers of metal. The first is copper and is thick enough to hide a few light scratches. It is applied to chemically cleaned metal from a cyanide based copper plating solution. This copper layer is buffed with an electric polishing wheel and light abrasive in a paste form. Modern copper plating solutions can also leave a bright copper finish needing no buffing. The next layer is a thin layer of nickel and the last is the chrome layer. Chrome has microscopic cracks in it so the underlying metal has to be very corrosion resistant.
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Old 31-01-2014, 19:04   #17
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Re: Removing Chrome From Bronze

In my case it is to remove the peeling chrome plating from port light frames.
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Old 31-01-2014, 21:33   #18
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Re: Removing Chrome From Bronze

Here are some pictures.

First is outside frame where to the left is the chrome peeling.

Second is of inside where we were lucky to be able to polish them up.

I have no problem with the outside being all bronze and wife likes the inside being chrome. If there was a perfect world.....
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