Z28 Wheel Trim Rings Refinishing

Discussion in 'Original Drivetrain Topic' started by Green hornet, Mar 29, 2020.

  1. bkmont

    bkmont Veteran Member

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    I agree - flash chromed
    thumbnail_IMG_0552.jpg
     
  2. COPO

    COPO Veteran Member Lifetime Gold Member

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    That magazine ad is most likely done by an artist just like the 70 Z28 brochure. ^
     
  3. bkmont

    bkmont Veteran Member

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    You would think by an artist that is under contract to do a true rendering of the subject.
     
  4. FlaJunkie

    FlaJunkie Veteran Member Lifetime Gold Member

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    I would agree. But is the ad stuff like a special first car sort of thing or is it a true representation?

    Surely, someone has a good color photo closeup from 1970?

    [​IMG]
     
  5. COPO

    COPO Veteran Member Lifetime Gold Member

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  6. FlaJunkie

    FlaJunkie Veteran Member Lifetime Gold Member

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    This one has a lot of salty road life. And a sunny picture would have been nice.
    This one's trim rings look like mine did after 18 months from the factory.

    Neither really answers the question; calling on Shirley, certainly SOMEONE HERE has a good color photo of the wheel from 1970?
     
  7. COPO

    COPO Veteran Member Lifetime Gold Member

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    Charley's 1100 mi LA Z28 he used to own. A 1970 SLR film camera isn't going to get a real good photo and if they did, it won't be of a tire and rim. It'll be of the complete car. We weren't into that in 1970.
    charles 1100 mi 70 Z.jpg
     
  8. 70lt1z28

    70lt1z28 Veteran Member Gold Member

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  9. FlaJunkie

    FlaJunkie Veteran Member Lifetime Gold Member

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    So what is it? Bright chrome or subdued brush look?
     
  10. secondgenaddict

    secondgenaddict Veteran Member

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    I can see the brushing on the trim rings above.

    Chromium's Effect on Surface Finish
    Chromium duplicates the machined surface finish up to 0.002 thick(decorative chrome is .0002 -.0005) and thereafter a progressive increase in microinch finish is detectable with any increase in thickness of plating (if the brushing is deeper. This condition is slightly exaggerated on shot-peened, brushed, or blasted finishes.

    Chromium never "levels off" or "fills in" surface imperfections. Defects, such as pits, cracks, or scratches are amplified, and if a highly polished surface is desired the surface should be highly polished before plating.
    Light, corrosive atmosphere 0.0002-0.0005 thick
    Most wear applications 0.0007-0.0015 thick
     

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