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Technical Removing paint from plastic emblems.

Discussion in 'The Hokey Ass Message Board' started by level2526, Aug 19, 2017.

  1. level2526
    Joined: Feb 14, 2009
    Posts: 50

    level2526
    Member

    I'm working on a 49 Mercury. The interior window frames have a plastic Mercury emblem some of the original paint has flaked off. I'm trying to remove the rest but don't want to cloud the plastic. After it is removed I could re-spray to make it look right. Anyone have experience with this ? [​IMG]


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  2. Beanscoot
    Joined: May 14, 2008
    Posts: 1,219

    Beanscoot
    Member

    When we were kids I recall my brother reading about using brake fluid to remove paint from plastic models, so we tried it. It worked pretty well I think. The cost of the fluid was steep for kids back then.
     
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  3. The Shift Wizard
    Joined: Jan 10, 2017
    Posts: 1,660

    The Shift Wizard
    ALLIANCE MEMBER

    A bit over 10 years ago I was on a kick to de-chrome and de-emblem my OT Chrysler. I had a few second level acrylic emblems, that had to remain, with multi-color paint and chrome on the back side. My idea was to remove the paint and the chrome graphics shaped into the back and repaint the backside with paint to match the body. I saw brake cleaner and Easy Off oven cleaner recommended online, neither of which I tried. I had some acetone on hand so I used that. The paint came off quick and easy but the chrome was tougher than bear meat. I had to soak, rub and scrub the reverse relief chrome letters 8 to 10 times with rags, old tooth brushes and frayed tip wooden toothpicks in the corners while soaked with the acetone. The plastic did get a superficial, cloudy haze but with a little rubbing with a rag just dampened with the acetone, the plastic cleaned up clear and polished.

    Now these were new plastic emblems, not 70 year old survivors. I suggest that whatever you use, test it on the outside, top surface first (because that's the easiest place to re-polish if any damage is done). Start with the gentlest product first, like maybe "Goof Off" and only something stronger such as the acetone if needed. An extreme solution would be to take some casting silicone impressions for casting new clear emblems.
     
    Last edited: Aug 19, 2017
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  4. 37 caddy
    Joined: Mar 4, 2010
    Posts: 279

    37 caddy
    Member
    from PEI Canada

    you could try your finger nail or razor blade scraper?,or even one of the eraser wheels that are for stripping off pinstripes on cars,3M makes them,other companies do too.or even try some wet sandpaper,start coarse and work your way down,that would propably work with some effort. Good Luck
     
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  5. BamaMav
    Joined: Jun 19, 2011
    Posts: 3,742

    BamaMav
    Member
    from Berry, AL

    Great thread. I have a Chevelle horn button I want to do the same thing to, remove all the gold paint from the lettering, only I want to repaint mine gloss black so the button will still have that "enclosed paint under glass" look. I don't want the lettering to show. I know I could paint the topside, but I'd rather paint the bottom side so the top still looks original.
     
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  6. On model cars we use Castol Super Clean to strip paint, there are commercial model products too. Oven cleaner is another method. I would practice on something first if possible, not knowing what plastic you have there.
     
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  7. Back in the day Carbon tetrachloride was the go to chemical to remove paint from plastic.
     
  8. level2526
    Joined: Feb 14, 2009
    Posts: 50

    level2526
    Member

    5window likes this.
  9. 5window
    Joined: Jan 29, 2005
    Posts: 6,951

    5window
    Member

    Looks nice, and a very useful thread to follow. Carbon tet was great-but only if you had a spare liver in stock.
     
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  10. The Shift Wizard
    Joined: Jan 10, 2017
    Posts: 1,660

    The Shift Wizard
    ALLIANCE MEMBER

    I love happy endings. :)

    That plastic looks like it has some life left in it. It's from back in the days when plastic was used to make little jewels in a car and not make the whole car out of plastic like what happens now.
     
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  11. Los_Control
    Joined: Oct 7, 2016
    Posts: 603

    Los_Control
    Member
    from TX

    I agree it looks good as is, as was mentioned earlier it is the chrome paint that is really tough to remove.
    I assume that the silver mercury is the paint I am talking about.
    I have a ford emblem am working on, same deal. The outside paint almost fell off, while the silver paint on the lettering I really had to work at.
    Been using sharply pointed objects that probably should not be playing with to do it.
    I have 99.5% removed, but still more work ahead.
     
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  12. topher5150
    Joined: Feb 10, 2017
    Posts: 1,691

    topher5150
    Member

    I've heard oven cleaner works too
     
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  13. level2526
    Joined: Feb 14, 2009
    Posts: 50

    level2526
    Member

    Speedys Garage likes this.
  14. Can you even buy carbon-tet these days? Other nasty chemicals I avoid are MEK and chlorathane.
     

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