JB Weld Removal

Discussion in 'The Garage' started by MAXVERT, May 12, 2013.

  1. MAXVERT

    MAXVERT OG on da OC

    Joined:
    Jan 19, 2004
    Oddometer:
    1,071
    Location:
    Sun Valley Idaho, Baja Arizona
    While on a CDR ride, I fixed a small leak on the radiator of my KTM 690.
    It looks like the leak is getting worse and I'd like to remove ( dissolve)
    the JB Weld I used for the repair and send the radiator out for proper
    repair.

    What, if anything, will remove the JB ?

    Thanks, Max
    #1
  2. Cogswell

    Cogswell Spudly Adventurer

    Joined:
    Jan 3, 2005
    Oddometer:
    4,783
    Location:
    Riding with my pal Richard Cranium
    A grinder or wire wheel, very carefully !


    Mike
    #2
  3. redprimo

    redprimo Been here awhile

    Joined:
    Jul 9, 2011
    Oddometer:
    579
    Location:
    central coast of California
    Heat will soften/weaken it. a good heat gun or propane torch in a well ventilated area should do the trick. But you might check with the radiator repair shop first, their dip tank might take care of it.
    #3
  4. kubiak

    kubiak Long timer

    Joined:
    Nov 25, 2007
    Oddometer:
    4,837
    Location:
    madera california
    i had good luck with chipping it off with a hammer and flatblade screwdriver. need to be careful though.
    #4
  5. _cy_

    _cy_ Long timer

    Joined:
    Sep 25, 2011
    Oddometer:
    6,468
    Location:
    Tulsa, Oklahoma
    call the radiator shop ... they've got heated tanks full of caustic dip designed specifically to clean radiators. certain metals react differently to chemicals .. radiator shop should know what to do...
    #5
  6. Hurricane Bob

    Hurricane Bob Long timer

    Joined:
    Jun 6, 2007
    Oddometer:
    2,948
    Location:
    Rhode Island
    Quote

    If it's a piece of metal or something that won't burn you can place it in the oven on 500 and let it sit for 15 minutes. Place the object ontop of a pan. Be very cautious when doing this and stay close to the oven. The JB Weld won't ignite but make sure the object has nothing flammable.
    After the 15 minutes remove the item with tongs and place on a cutting board or something that can't burn. Using a chisel it will come off like butter.

    Or

    Use a solder gun or solder stick. They are about 20 dollars at home depot/lowes. Use the chisel attachment and let it get real hot then press it to the JB Weld. It will cut through it like butter.

    Unquote


    From a boating forum.
    #6
  7. Maggot12

    Maggot12 U'mmmm yeaah!!

    Joined:
    Feb 21, 2010
    Oddometer:
    6,726
    Location:
    Barrie Ont
    Dremel and try any of there small griding tips/bits.
    #7
  8. qkenf4u

    qkenf4u Been here awhile

    Joined:
    Jul 25, 2009
    Oddometer:
    201
    Location:
    nice warm bike riding COTTONWOOD ARIZONA...
    it will melt after 400-500* so a propane torch will melt it off . just hold it upside down and let it drip off .... calling the rad shop and seeing if their tank will eat it is a good idea also....
    #8
  9. speedracertdi

    speedracertdi Been here awhile

    Joined:
    Jun 11, 2009
    Oddometer:
    985
    Location:
    Hollywood, FL
    Salt and pepper, season to taste.
    #9
  10. Flashmo

    Flashmo Whatever...

    Joined:
    Dec 21, 2008
    Oddometer:
    2,635
    Location:
    Vagabond Hippie
    Heat. You can break any epoxy bond with the right amount of heat.
    #10
  11. dirty_sanchez

    dirty_sanchez Dirty_Sanchez

    Joined:
    May 8, 2006
    Oddometer:
    3,056
    Location:
    Louisiana, Baton Rouge
    Yep, epoxies are nothing more than really strong plastics.

    Plastics soften and even melt when you add heat.

    Heat it up and scrape off the JB Weld with Moms best kitchen knife.

    Dirty
    #11
  12. Tsotsie

    Tsotsie Semi-reformed Tsotsi

    Joined:
    Nov 12, 2007
    Oddometer:
    1,991
    Location:
    South Texas
    Before applying heat- what is the radiator made of? I am not familiar with how KTM make them. Many are plastic and AL composite or AL based.

    A pic and patience.
    #12