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Thread: filler over seam

  1. #1
    Join Date
    Jan 2007
    Location
    Ottawa, Canada
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    208

    Default filler over seam

    Should a welded seam be hammered down slightly lower than the surrounding panel in order to have room to apply moisture resistant filler?

    Or, should the seam be flat with the panel (as best as I can get) and filler used to fill any possible pin holes?

  2. #2
    Join Date
    Nov 2005
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    27,969

    Default

    Quote Originally Posted by DC932 View Post
    Should a welded seam be hammered down slightly lower than the surrounding panel in order to have room to apply moisture resistant filler?

    Or, should the seam be flat with the panel (as best as I can get) and filler used to fill any possible pin holes?
    Producing a nice flat seam is always best but in many cases it's quite difficult and you're better off having it a little low. If we welded and the seam is a little high we grind off the excess metal left by welding then gently tap the metal until it's a little low then use milled fiberglass filler or All Metal to seal seam then level the surface with body filler. If you can get to both sides of the seam you may be able to hammer and dolly the seam to help level it before sealing it.

  3. #3
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    Jan 2007
    Location
    Ottawa, Canada
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    Default

    Thanks! Good info

  4. #4
    Join Date
    Nov 2005
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    3,423

    Default What say you...

    Quote Originally Posted by Len View Post
    Producing a nice flat seam is always best but in many cases it's quite difficult and you're better off having it a little low. If we welded and the seam is a little high we grind off the excess metal left by welding then gently tap the metal until it's a little low then use milled fiberglass filler or All Metal to seal seam then level the surface with body filler. If you can get to both sides of the seam you may be able to hammer and dolly the seam to help level it before sealing it.
    about flange tools?

    Henry

  5. #5
    Join Date
    Nov 2005
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    27,969

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    Quote Originally Posted by Henry View Post
    about flange tools?

    Henry
    It's pretty much the same no matter what method you use to put the metal together. Whether you use a backing strip, flange or butt welding you'll probably need to level or countersink the seam then seal it and level it.

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