Remove mirror like coating

Exterior Body, Paint, Trim, Chrome

  1. 62440

    62440 Well-Known Member

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    The finish was peeling off the inside plastic of my hood emblem. I tried soaking it in brake fluid and most of the paint came off except a finish that you see on the back side of a mirror. I noticed that the lens was crazed after the brake fluid soak, unless l didn't notice it before. Any Suggestions how to remove this finsh ? It's very hard.
    [​IMG]
     
  2. ChargerST

    ChargerST Well-Known Member

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    Could be chromed plastic. You could try to use an acid that dissolves chrome but doesn't attack plastic.
     
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    • Photon440

      Photon440 Well-Known Member

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      Almost always, there isn't real chrome on plastic parts. Chrome won't electroplate to it. What is usually seen is aluminum, applied with a vapor deposition system. Oven cleaner with lye will take off that aluminum in a hurry.
       
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      • ChargerST

        ChargerST Well-Known Member

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        Actually it is possible to chrome plate plastics with real chrome. You need to apply a conductive layer to the plastic (palladium iirc) and then the process is pretty much the same as chroming metal parts.
         
      • Photon440

        Photon440 Well-Known Member

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        Yes, I know it's possible, it just isn't cost effective or often done that way. In the era our cars were put together, plastic with chrome, such as chrome trim on a dashboard, were done with vapor deposition. Same as the bumpers on a plastic model car or plastic reflector in a flashlight.
         
      • 62440

        62440 Well-Known Member

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        I have lye, I'll try that, fingers crossed
         
      • 62440

        62440 Well-Known Member

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        Lye didn't work. I ended up picking and scraping it off with a exact knife then buffing with a dremel. Next step is a bit of a joke for myself, gold leaf. I think the crazing will add to the effect.
        received-237877237526265.jpg
         
      • Photon440

        Photon440 Well-Known Member

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        That would look kinda neat with a coloured LED light behind it.
         
      • 62440

        62440 Well-Known Member

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        Interesting thought, but my eye's are failing and l don't like driving at night any more :(
         
      • 62440

        62440 Well-Known Member

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        Just a update on my hood emblem. I think l said previously this is a bit of a joke for my self, but 10 layers later of 24 k gold leaf sealed with clear lacquer and topcoat of silver paint.
        received-3010320402362045.jpg
         
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