(Topic ID: 257755)

Coin door scratches


By Silverstreak02

60 days ago



Topic Stats

  • 12 posts
  • 6 Pinsiders participating
  • Latest reply 58 days ago by jrpinball
  • Topic is favorited by 2 Pinsiders

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    #1 60 days ago

    I’m restoring my Jacks Open and have started on the coin door. It has light scratches in multiple places on the front of the door. How do I remove the scratches and retain the natural grain of the metal? The picture shows the scratches.

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    #2 60 days ago
    Quoted from Silverstreak02:

    The picture shows the scratches.

    Are those really scratches, or are they silver streaks?

    #3 60 days ago

    Light scratches

    #5 60 days ago

    In addition to those scratches there's also a dent that needs to be hammered out.

    The scratches need to be sanded out. I'd start with a DA and 220 grit until you cant see the scratches anymore. The sanding will also reveal any low spots (like that dent). After the dent and scratches are gone I'd move up to 400, 600, then 800 grit with the final sanding done in the direction of the grain.

    It'll look new when you're done.

    Here's an old Williams door I did as described above that was in way worse shape than yours. (Actually I think I stopped at 600 grit on this one... I don't remember)
    RB89 (resized).jpg
    RB90 (resized).jpg

    Hope this helps

    -Paul

    #6 59 days ago
    Quoted from Pablito350:

    In addition to those scratches there's also a dent that needs to be hammered out.
    The scratches need to be sanded out. I'd start with a DA and 220 grit until you cant see the scratches anymore. The sanding will also reveal any low spots (like that dent). After the dent and scratches are gone I'd move up to 400, 600, then 800 grit with the final sanding done in the direction of the grain.
    It'll look new when you're done.
    Here's an old Williams door I did as described above that was in way worse shape than yours. (Actually I think I stopped at 600 grit on this one... I don't remember)
    [quoted image]
    [quoted image]
    Hope this helps
    -Paul

    There's nothing like good ol' elbow grease!
    Your door was easier though than his will be. Yours is flat. His has those raised areas.

    #7 59 days ago
    Quoted from jrpinball:

    There's nothing like good ol' elbow grease!
    Your door was easier though than his will be. Yours is flat. His has those raised areas.

    This is very true.

    #8 58 days ago

    I used a small hammer and a sandbag to remove about 90% of the dent. Next I started as Pablito suggested with 220 grit and worked my way up to 1000. I followed that with the buffer and a coat of wax. It was difficult to work around the raised areas as jrpinball stated. The result is mixed. Some areas are very shiny and others are dark. Overall there are swirls like it’s been through a car wash. I’m not sure what to do next.

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    #9 58 days ago

    you should never go up to 1000 grit on these doors unless you are planning on buffing them to a high shine. To keep the grain somewhat even use 400-600 grit max and wet sand with a block in the direction of the grain. I use a straight piece of wood as a guide to keep the block perfectly straight when sanding or you get uneven curled swirls. Finish up with a red scotch brite pad.

    #10 58 days ago

    The purpose of going to finer and finer grits is to remove the scratches from the previous sanding. In your pics you can still see those sanding marks from previous grits.

    If you want to polish the door to a high shine you'd continue sanding to the much finer grits (1500, 2000... etc) before a final polish.

    If you want to make it appear stock you'd want to finish with a 400 or 600 grit sanded in the direction of the grain. Yours is now kind of in between those two. I've also finished a door with red scotchbrite to make it appear stock.
    IMG_20191208_211124678 (resized).jpg
    (sorry I don't have a closeup pic of the door, but it's a stock satin-like finish)

    Experiment with it a bit with different grits. It looks like you got the dent, and the scratches out so now you have a nice, clean straight door. Just use whatever grit you can to give you the desired finish you like.

    -Paul

    #11 58 days ago

    I tried some green scotch brite and it didn’t seem to help much. I got out the sandpaper and started with 320, went to 400 and finished with 600 grit and a coat of wax. Not sure if I’m happy, but I’m getting tired of it. Polishing isn’t in my wheelhouse.

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    #12 58 days ago

    If you're happy with it, it's probably good enough. Put it on the game and be done with it.

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