F355 stock wheels: paint scratches | FerrariChat
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F355 stock wheels: paint scratches

Discussion in '348/355' started by glenn355, Aug 27, 2013.

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  1. glenn355

    glenn355 Rookie

    Jul 22, 2013
    18
    #1 glenn355, Aug 27, 2013
    I recently had two new tires installed on my car that has the original factory wheels. unfortunately, the machine scratched the rim of one of the wheels. Beyond disappointing, yes, but my question is: I notice that below the clear coat and the silver paint, there appears to be a red primer or undercoat of some type -does anyone know with certainty if this was how they came from the factory? ...
     
  2. hjp

    hjp Formula Junior

    Feb 23, 2013
    591
    Kansas City, Mo.
    Full Name:
    Jerry Peterson
    #2 hjp, Aug 27, 2013
    They came from Speedline Itally with a chemical convergence coating (Dow 7 or equal). All magnesium alloy wheels must have this coating for any finish to adhere properly. A primer is applied over the Dow 7 and then the silver paint followed by the clear coat. Without the Dow 7, any paint will bubble and blister over time (see thread by Bradan on Fchat for refinishing 355 wheels).
     
  3. SoCal1

    SoCal1 F1 Veteran
    Owner Silver Subscribed

    Jun 14, 2011
    8,636
    SoCal LA/OC/New Mexico
    Full Name:
    Tim Dee
    #3 SoCal1, Aug 27, 2013
  4. glenn355

    glenn355 Rookie

    Jul 22, 2013
    18
    #4 glenn355, Aug 27, 2013
    thanks guys, good feedback! Either of you know if the original speedline undercoatings were red in color?
     
  5. phrogs

    phrogs F1 Veteran
    Silver Subscribed

    Apr 13, 2004
    7,357
    Kzoo Michigan
    #5 phrogs, Dec 1, 2014
    I have scratches on my factory wheels (not challenge wheels) and its not red underneath, but it doesn't really mean anything.
     
  6. taz355

    taz355 F1 Veteran
    Owner Silver Subscribed

    Feb 18, 2008
    6,059
    Indio Ca/ Alberta
    Full Name:
    Grant
    #6 taz355, Dec 1, 2014
  7. John_K_348

    John_K_348 F1 Rookie

    Sep 20, 2013
    2,757
    Boston, MA
    Full Name:
    John E. Kenney
    #7 John_K_348, Dec 1, 2014
    I lightly curbed my drivers rear this summer pulling away from a drunk girl on the corner one night. She said she was fine and waved me off ;) Anyway, the GM paint is a great match and the clearcoat works well. Just do the prep and wet sand. You can get an alloy filler if its deep. I had just a couple inch long gouges in the lip. Spokes were fine. My new OZs are 10 times as awesome :D
     

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