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vrichmd

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vrichmd last won the day on November 6 2020

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About vrichmd

  • Birthday 10/19/1968

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    vrichmd@hotmail.com
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    Daytona Beach, FL
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    PCA (Porsche Club of America)
  • Present cars
    2003 Cayenne Turbo

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  1. Aluminum Door Sill Refresh
    Making scratched door sills look brand new on your Cayenne

    The stainless steel door sills on the Cayenne were in pretty bad shape, so I started looking for options to bring them back into respectable condition.

    This is what they all looked like before I started:

    Posted Image

    So after some research and a little trial and error as well this is what I did:

    Step 1: Wet sand with 150 grit sandpaper:

    This is enough to take out even pretty deep scratches, although some may require a little more pressure in the affected area to get rid of)

    Posted Image

    Step 2: Wet sand with 220 grit sandpaper

    Posted Image

    For both of the above steps I used Diablo Palm sander sheets that I had lying around.

    I wrapped the sandpaper around a sponge sanding block to ensure even distribution of pressure.

    If you are very careful and linear with your motion you can achieve a nice “brushed” finish as can be seen in the picture.

    I actually did this with the trunk trim (pictures later in the post), but for the door sills I wanted a high gloss finish.

    For Steps 3 and 4 I used the Eastwood Automotive Polishing Kit Eastwood Buffing Kit - Paint Buffing Kits - Buffing and Polishing Kit

    I also used a Craftsman Pro variable speed drill (running at 2500 RPM)

    Step 3: Polish with Tripoli (brown) compound and the large round (cylindrical) buff

    I do 4 very slow passes with a good amount of downward pressure, followed by 6 more passes reducing the pressure each time, thus allowing the buff to spin increasingly faster with each pass.

    This step polishes out most of the 220 Grit sanding marks, but still leaves a slightly hazy appearance.

    Posted Image

    Step 4: Polish with White Rouge and the spiral sewn wheel.

    I do 2 passes with medium pressure, followed by another 4 passes with reduced pressure allowing the wheel to spin faster each time. This results in a high gloss, mirror finish.:dblthumb2:

    Posted Image

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    For the trunk I wet sanded with 150 to get the deep scratches out, then I polished with brown compound, to smooth it out a little and then went back with 220grit to get the brushed effect.

    I didn’t have time to finish it off completely today, but here are some pics in the interim. I should have taken some before pics, but basically this area was even worse than the door sills before I started.

    Posted Image

    Posted Image

    EDIT:

    For clarification, these are the buffs that were used in steps 3 and 4 in the initial post.

    I couldn't find links to the individual parts on the website so I will just post snapshots from the package pic:

    This is the buff used in step 3 with Brown/Tripoli compound:

    It is dense and allows for a good amount of pressure to be applied.

    Posted Image

    This is the buff used in step 4 with white compound:

    Lower density but good for getting a higher level of gloss.

    Posted Image


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