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Polishing poly... can it be done?

Discussion in 'Luthier's Corner' started by dangervolta, Jan 22, 2014.


  1. dangervolta

    dangervolta

    Joined:
    Jan 14, 2014
    I have an older beat up MIJ Memphis bass I'm considering refinishing because of all the craters and scratches. Is there an easier way? Could I possibly sand it down up to 12000 grit micromesh and then Rennaisance wax it back to shine? Or is poly pretty much polish and repair proof?
     
  2. Hopkins

    Hopkins Supporting Member

    Joined:
    Nov 17, 2010
    Location:
    Houston Tx
    Of course poly can be polished, how do you think the original shine got there? Your only worry is if you can sand deep enough to get the scratches out without cutting through the clear.
     
  3. DiabolusInMusic

    DiabolusInMusic Functionless Art is Merely Tolerated Vandalism Gold Supporting Member

    Joined:
    Dec 22, 2010
    Location:
    Saskatoon, Saskatchewan
    I would use some Meguir's Scratch-X and a chamois, it should remove light scratches and blemishes, then use some auto wax to get the shine back. This method works on poly and nitro.
     
  4. dangervolta

    dangervolta

    Joined:
    Jan 14, 2014
    OK so that would be MUCH easier! I would have to go all the way down to the wood to get all the cracks out but if I sanded it halfway through the finish it would take out almost 70% of the scratches and that would be good enough for me. I don't mind a few dings and gouges as long as it has some shine to it. So if I wet sand this baby down and go through the grit progression then finish with colortone fine polishing compound then swirl remover I should get a shine back?!?!? :eek: That would be more than awesome enough. I thought I'd either have to sand half way and spray nitro over THEN polish OR strip the whole damn thing and start over. :confused: Let me know what you think.
     
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  6. thunderbird66

    thunderbird66

    Joined:
    Sep 30, 2012
    Location:
    west Texas
    3M has some great products for this. I'd personally get the the rubbing compound for your "cut" then the stuff called "perfect- it" for your finish. I do this and have excellent results.
    A lot of auto part stores carry full lines of 3M. Good stuff
     
  7. Hopkins

    Hopkins Supporting Member

    Joined:
    Nov 17, 2010
    Location:
    Houston Tx
    It should work fine. You might invest in a wool pad you can chuck into a hand drill and a couple different grades of compound. A machine polish will always shine more than by hand
     
  8. dangervolta

    dangervolta

    Joined:
    Jan 14, 2014
    Thanks guys this will save me some serious bucks. I was gonna drop $40 on nitro and probably make a mess. This is a much safer course of action! Ill post results later.
     
  9. David Jayne

    David Jayne

    Joined:
    Jan 16, 2006
    Location:
    Brookfield, CT
    Just make believe it's a late-model car. Same stuff.
     

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