1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

Welders Save My Sanity Please

Discussion in 'Builds and Fabricators Forum' started by Johns1967CJ5, Jan 7, 2017.

  1. Jan 12, 2017
    Keys5a

    Keys5a Sponsor

    Florida Keys
    Joined:
    Jan 23, 2014
    Messages:
    4,241
    Your fitup and welding looks fine. The grinding is good, just watch for heat which causes warping.
    When I get to the stage in your pictures, a little porus but structurally solid, I usually dust the weld areas with my sandblaster. This cleans out all the soot and crusties the nooks and crannies left from welding, and conditions the metal surface where coatings can get a "bite".
    I then skim the area with 3M 8115 panel bond, using it just like bondo filler. It sands like polyester filler, but bonds REALLY well. After rough blocking, I spray the whole thing with 2 part epoxy primer, then use glaze to finish before final paint. With this process, there are no issues with rust or corrosion creeping in years later.
    -Donny
     
  2. Jan 19, 2017
    GraySkies

    GraySkies Always late, never finished...

    Western Washington
    Joined:
    Mar 25, 2012
    Messages:
    63
    This is a great thread and I am learning a lot. Thanks all.

    Any suggestions on what are the best stranded glass fillers? I am relatively new to body work and am just starting to learn about this stuff. I have used bondo before. Is the stranded glass filler more difficult to work with?
     
  3. Jan 19, 2017
    sterlclan

    sterlclan Member 2024 Sponsor 2022 Sponsor

    exploring the...
    Joined:
    Feb 21, 2009
    Messages:
    3,914
    its more rugged to spread kinda lumpy and stringy,mix it well and really smash it into the gaps dont worry about smooth. after it hardens grind or sand with coarse (36 grit ) till its smooth enough to apply filler . i prefer marson brand fillers( mar glass is the brand name for the glass filler)but they are all about the same. the proper mixture of hardener to product will help with cure , sanding and long term durability..
     
    GraySkies likes this.
  4. Jan 20, 2017
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
    Joined:
    Aug 10, 2003
    Messages:
    23,596
    I've used the USC Duraglas filler and it does not have a stringy consistency - pretty close to regular bondo, maybe a little stiffer. Probably does not skim as easily as the high-end fillers, but I have not used it that way. Long fiber filler is popular for rust repair, and I expect that would have a stringier texture.
     
  5. Jan 20, 2017
    sterlclan

    sterlclan Member 2024 Sponsor 2022 Sponsor

    exploring the...
    Joined:
    Feb 21, 2009
    Messages:
    3,914
    they are all about the same i just prefer the long strand stuff Ive found the chopped doesn't hold up as well long term.Someone told me years ago that a repaint usually lasts five years or so, i never bought that and have been aiming for ten at least.So far im doing good got a bunch older than ten that are still hanging in there,as long as the customer keeps them on the road and avoids crashing them.lost at least a dozen nice ones(70.5 trans am and the Dan Gurney fairlane stand out as two tragic ends to beautiful jobs)
     
  6. Jan 20, 2017
    Admiral Cray

    Admiral Cray I want to do this again.. Staff Member

    Bainbridge...
    Joined:
    Sep 21, 2009
    Messages:
    204,363
    When I was working on my Porsches, the best way to fill holes after MIG work is to use a Oxy-Acetylene torch and fill rod. It takes time to learn. Shrinking metal is the hardest thing to learn. A dolly and a metal working hammer are necessities. I still don't fully understand it, but can do it...

    When done correctly you can't tell where the old metal and new metal begin and end...
     
  7. Jan 20, 2017
    Johns1967CJ5

    Johns1967CJ5 Sponsor

    Northern NJ
    Joined:
    Dec 5, 2013
    Messages:
    1,695
    Just put this in my build thread too. figured I'll put it here too

    I wanted to try using panel clamps this weekend but of course no one local sells them and I didn't want to wait to have them shipped so of course I built some
    [​IMG]

    just took some 1" square stock and cut it in 1" lengths
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]

    I cut the slot with a 1/16"grinder wheel
    [​IMG]
    [​IMG]

    And look at that they work :) came to 41 cents a pc not including labor of course....who counts that anyway
    [​IMG]
    [​IMG]
    [​IMG]
     
    jwmckenzie and 47v6 like this.
  8. Jan 20, 2017
    Admiral Cray

    Admiral Cray I want to do this again.. Staff Member

    Bainbridge...
    Joined:
    Sep 21, 2009
    Messages:
    204,363
    I have some of those..

    Do a search on metal shrinking...
     
  9. Jan 21, 2017
    jwmckenzie

    jwmckenzie Sponsor

    Boston, MA
    Joined:
    Mar 16, 2012
    Messages:
    570
    Wow, those panel clamps look like they would do the job. Nice work. I usually just use welding magnets (have three of them) to get it tacked but it takes a while to get everything set and if you bump it you start again.

    Ultimate Welding Arrow Magnet Set
     
  10. Jan 21, 2017
    Admiral Cray

    Admiral Cray I want to do this again.. Staff Member

    Bainbridge...
    Joined:
    Sep 21, 2009
    Messages:
    204,363
    [​IMG]

    Just like the Eastwood ones... (y)

    [​IMG]
     
    Johns1967CJ5 likes this.
  11. Jan 21, 2017
    Johns1967CJ5

    Johns1967CJ5 Sponsor

    Northern NJ
    Joined:
    Dec 5, 2013
    Messages:
    1,695
    They worked well
    [​IMG]
     
    piffey263 likes this.
New Posts