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Putting copper foil over poor paint shielding from fender

Discussion in 'Tele-Technical' started by MrSoAndSo, Feb 25, 2021.

  1. MrSoAndSo

    MrSoAndSo TDPRI Member

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    So I have a MIM P bass body that has a partial shielding job that came with the bass. I have copper foil and it is what I use on my build as I prefer it ( I know most don’t ). I was considering putting foil over all the spots fender did and over the spots they missed. I am having issues with slight noise but the popping I’m getting when I touch the strings or anything else grounded is driving me nuts. I have a set of EMG passive pups that I believe are pre shielded and are cast in epoxy but I’m getting noise. I have always have had good results doing a foil job. I was told not to put foil over the shielding paint as it may cause a conductance issue. Is this something I need to be concerned about? I don’t even know what kind of shielding paint fender uses and not sure mixing to different kinds would be better then just going over with the adhesive backed copper, which I already have ( paint I do not ). Any help appreciated !!!
     
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  2. StrangerNY

    StrangerNY Friend of Leo's Gold Supporter

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    I don't see any reason why putting copper over paint would cause an issue.

    - D
     
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  3. BorderRadio

    BorderRadio Doctor of Teleocity Silver Supporter

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    You'll need to cover the entire cavity with foil for the best effect. You can't get nowhere close to the conductance of copper with a thin layer of conductive paint. The foil can go right over the paint, no issue there, just act like the paint isn't there, and treat each connection as one attached to the copper and not the paint. Also, solder the overlaps, just for extra measure...
     
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  4. SixStringSlinger

    SixStringSlinger Friend of Leo's

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    this is exactly what I did with my Jazzmaster. Foil-coated all the cavities with overlapping sheets. I also let a little bit "spill" over the lip of the cavities to ensure contact with the copper tape on the bottom of the pick guard (though this was later replaced with the JM pick guard shield Fender sells). No problems at all.

    Just be careful with he copper foil; that stuff can make a paper cut sound like a good time.
     
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  5. mkdaws32

    mkdaws32 Friend of Leo's Gold Supporter

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    As long as your copper shielding is properly grounded, I can’t see why there would be a problem. I have put full copper shielding in all my guitars - some had the paint and some don’t. Copper and aluminum shielding are much better conductors than that paint is anyway.

    I prefer true single coils in my Strats and Teles even for high gain tones. But I hate hum and RF noise. Ever since I started shielding my guitars to minimize noise and using a noise gate to get rid of the hum during breaks in playing, I’ve been 100% happy with my tone and the noise floor.
     
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  6. MrSoAndSo

    MrSoAndSo TDPRI Member

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    Thanks so much everybody !!! This is my first time posting here and already got answers, outstanding!!! I’m usually on a bass forum. I joined here because I’m a tele lover and want to get one someday to use for recording along with my acoustic.
     
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  7. Killing Floor

    Killing Floor Tele-Afflicted

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    I shield my Fender basses and guitars with copper foil or tape. I’d like to pass this on to Leo’s ghost if you’re listening. Next time you raise prices 10% make it 11% and shield the cavities.
     
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  8. BorderRadio

    BorderRadio Doctor of Teleocity Silver Supporter

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  9. MrSoAndSo

    MrSoAndSo TDPRI Member

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    Thanks, happy to be here !!
     
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  10. DavidP

    DavidP Friend of Leo's

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    Like others have said, do a full coverage job with the copper foil.
    Before you start, is any of the original conductive paint flaking? Some 'name' brands that I will refrain from noting are notorious for that. If so, go over the area to loosen/remove as much of it as [possible. I'd go over the cavity area with some sandpaper -- that will likely be messy with flakes/dust, but better to get rid of it now rather than foil lifting in the future!
     
    Last edited: Feb 25, 2021
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  11. Boreas

    Boreas Friend of Leo's Silver Supporter

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    I have done just that on several guitars. No downside I have noticed - except the slices on my fingertips mentioned above. Luckily after half a dozen or so, I changed my technique...
     
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  12. JSMac

    JSMac Tele-Holic

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    I would foil the entire cavities, regardless of what Fender did with the paint. I don't see how that could produce conductance issues.
     
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  13. Boreas

    Boreas Friend of Leo's Silver Supporter

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    Make sure your bridge is properly grounded. If poorly grounded, that could cause your popping, because you are becoming the ground. And make sure whatever your bridge is grounded to is also properly grounded. Test with a continuity tester.
     
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  14. teleplayr

    teleplayr Tele-Afflicted

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    Or buy copper tape that has conductive adhesive and not bother with soldering.
     
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  15. BorderRadio

    BorderRadio Doctor of Teleocity Silver Supporter

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    Correct, but I'm just going by Ron Kirn's advice about shielding. Continuity failure won't be a big deal if it happens, so I don't go overboard with the solder drops, doing every inch. I drop solder in places where main cavities connect with others...like a Jag or Jazzmaster.
     
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