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Bondo dries quick

Discussion in 'The Hokey Ass Message Board' started by 302aod, Jul 9, 2012.

  1. 302aod
    Joined: Dec 19, 2011
    Posts: 275

    302aod
    Member
    from Pelham,Tn.

    I'm having trouble with Bondo. After replacing rusted out metal in my 64 F100, the bondo I'm using to smooth it out, dries after a couple minutes. So dry that it won't spread. Do they make any slow drying hardener?
     
  2. rick3658
    Joined: Feb 3, 2009
    Posts: 124

    rick3658
    Member
    from wisconsin

    put in less hardner and that will give you more time
     
  3. Experiment a little on something that doesn't matter.

    ...you also don't have to use the whole tube of hardener all at once. :D
     
  4. slddnmatt
    Joined: Mar 30, 2006
    Posts: 3,685

    slddnmatt
    Member

    There's a happy medium if you put to little in it it won't harden correctly and you'll have to do it again.. when its hot you just have to be very quick!!
     

  5. Irishman
    Joined: Mar 28, 2012
    Posts: 148

    Irishman
    Member

    I had a similar issue with fibreglass resin. I dumped a whole tube of hardener into it. I thought I had a plastic container full of thermite!

    And, yes, I was drunk.
     
  6. stainlesssteelrat
    Joined: Nov 23, 2010
    Posts: 583

    stainlesssteelrat
    Member
    from ms

  7. well yeah...

    ...if you know how to lead....
     
  8. chaos10meter
    Joined: Feb 21, 2007
    Posts: 2,191

    chaos10meter
    Member
    from PA.

    Had an old body shop guy tell me to add a couple drops of fiberglass hardener to the Bondo mix .
    He said it will keep it open a bit longer & give a little more work time ?
     
  9. Do it in the shade helps too. Sunlight changes the time.
     
  10. stainlesssteelrat
    Joined: Nov 23, 2010
    Posts: 583

    stainlesssteelrat
    Member
    from ms


    could you think of a better time to learn?
     
  11. 302aod
    Joined: Dec 19, 2011
    Posts: 275

    302aod
    Member
    from Pelham,Tn.

    I'm inside my shop, but it's hot in there. I'll use less hardiner next time, thanks guys.
     
  12. Adding the hardener makes a chemical reaction that happens faster as the temperature goes up. Try less hardener in high temps but make sure it is completely blended or it will not set up.
     
  13. pitman
    Joined: May 14, 2006
    Posts: 5,148

    pitman

    Quote: lead is better.

    Bondo fumes are sweeter...I used to think.
    Wait a minute!
     
    Last edited: Jul 9, 2012
  14. Go teach him :rolleyes:
     
  15. Rhinodaddy
    Joined: Jul 20, 2010
    Posts: 48

    Rhinodaddy
    Member
    from mesa az

    It's hotter out, so the inital hardening is going to kick in faster. As was mentioned above, the bondo gets hot anyway, but you're starting out at a hotter temp to begin with during the summer, so the hardening kicks in quicker. Figure every 20 degrees over 70 F is going to make the bondo cure twice as fast as what is listed on the can.
     
  16. Uhhhh, in moderate weather, bondo is supposed kick off in a couple of minutes. If you're having problems getting it smooth enough, before it gets too stiff, you need to work on your technique. Spread it as smooth as you can, wait for it to get hard enough to cheese grate, shape it with the grater, allow it to fully harden and hit it with your longboard
     
  17. Reman
    Joined: Jul 8, 2010
    Posts: 352

    Reman
    Member
    from Florida

    As already stated in different words.....Two things determine the set up time with bondo, amount of hardner and ambient temperature. Adjust one or the other and it will work correctly.
     
  18. Model T1
    Joined: May 11, 2012
    Posts: 3,309

    Model T1
    Member

    It's actually too hot to use bondo right now. Use a fan and stay in the shade, as you say, inside. Try mixing smaller batches using only a spot of hardener then work up to maybe golfball sized gobs of Bondo and a 1/2" ribbon of hardener.
    Do it early morning or later in the evening till the weather cools down.
     
  19. belair
    Joined: Jul 10, 2006
    Posts: 9,015

    belair
    Member

    Gasoline too, as I remember.
    Did I say that?
     
  20. Model T1
    Joined: May 11, 2012
    Posts: 3,309

    Model T1
    Member

    It's too damned hot to mow the yard. I'm sure not about to use Bondo here in Floriduuuh.
    You can tell by most of our answers we've used way too much bondo and other fume producing things.
     
  21. squirrel
    Joined: Sep 23, 2004
    Posts: 56,043

    squirrel
    Member

    I try to do my bodywork in the spring....
     
  22. 29moonshine
    Joined: Dec 30, 2006
    Posts: 1,341

    29moonshine
    Member

    yea but in the winter it takes to much beer waiting for it to set up
     
  23. Dennis D
    Joined: May 2, 2009
    Posts: 851

    Dennis D
    Member

    I keep my bondo and hardener in the house where the ac is on until I need to use it. Helps a bit. Dennis D
     
  24. larry k
    Joined: Feb 23, 2009
    Posts: 547

    larry k
    Member

    Sneek in the kitchen while your wife ain't lookin and put that gallon of mud in the refer ,not the freezer ! With lid on of course, when you wake up ,itt'l work slow as winter, cause, well, it thinks it is winter ?
     
  25. no time like the present I suppose.
     
  26. Mopar Jack
    Joined: Jan 24, 2010
    Posts: 1,363

    Mopar Jack
    Member

    Yal,what they said...
     
  27. davidbistolas
    Joined: May 21, 2010
    Posts: 960

    davidbistolas
    Member

    Do you mean fiberglass resin, and not hardener?
     
  28. mj40's
    Joined: Dec 11, 2008
    Posts: 3,303

    mj40's
    Member

    Too damn hot to work at all in Boise today. 108°
     
    Last edited: Jul 9, 2012
  29. Model T1
    Joined: May 11, 2012
    Posts: 3,309

    Model T1
    Member

    <TABLE border=0 cellSpacing=0 cellPadding=6 width="100%"><TBODY><TR><TD style="BORDER-BOTTOM: 1px inset; BORDER-LEFT: 1px inset; BORDER-TOP: 1px inset; BORDER-RIGHT: 1px inset" class=alt2>Originally Posted by Model T1 [​IMG]
    It's too damned hot to mow the yard. I'm sure not about to use Bondo here in Floriduuuh.
    You can tell by most of our answers we've used way too much bondo and other fume producing things.

    </TD></TR></TBODY></TABLE>yea but in the winter it takes to much beer waiting for it to set up

    I fail to see the problem here !:confused:<!-- / message -->
     
  30. Reman
    Joined: Jul 8, 2010
    Posts: 352

    Reman
    Member
    from Florida

    LOL. Yeah, I am in nw Floriduuh too. And yep, its hot.
     

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