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Old Sep 5, 2013 | 01:32 PM
  #1  
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wwaaddss
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bondo removal

hey guys,
I recently picked up A '75 f350 crew cab long bed with a ton of bondo on the box. In some places it is almost an inch thick. Does anyone have any suggestions as to what is the best way to remove it?









thanks!
 
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Old Sep 5, 2013 | 01:54 PM
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A circular electric or air sander with the lowest grit sandpaper you can find and go to town on it.
 
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Old Sep 5, 2013 | 02:03 PM
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arctic y block
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Media Blasting, chipping, Sanding and like that. Sand or other media is prolly the best.
Thanks for the pics. I see fiber glass. so after getting it blasted ya are prolly gonna
want to put in some patch panels.
I suggest getting the body where the filler was caked on as straight and close as
possible Before welding in the patches.
Or maybe get another bed? Or a whole bed side? Ford may still have some OEM out there.
We have a resident Ford parts Guru (Numberdummy) That may chime in here if he see it.
It looks like ya are going to learn some Body Work skills my friend.
Please keep us posted. And lots of pics as we do like pics and it better helps to
understand what we are working on.
And welcome to FTE. Some have been here for years and still can't post pics.
Good job.
 
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Old Sep 5, 2013 | 02:10 PM
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thanks samrat,
I was thinking either that or a wire wheel. I read somewhere that you could heat it up with a heat gun to make it softer and take off bigger pieces at a time
 
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Old Sep 5, 2013 | 02:16 PM
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Originally Posted by wwaaddss
thanks samrat,
I was thinking either that or a wire wheel. I read somewhere that you could heat it up with a heat gun to make it softer and take off bigger pieces at a time
25 years ago when I used to do paint and body work, that was how we removed old body filler - a circular sander with low grit paper. It would come off quickly.
 
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Old Sep 5, 2013 | 02:18 PM
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I would think an orbital electric sander with 40 grit would work. Make sure to wear a mask and be prepared for a big mess though.

I would be hesitant to heat it up though as it could increase toxicity.
 
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Old Sep 5, 2013 | 02:21 PM
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A whole new bed would be ideal but im in south florida so they are not easy to find. once i do get the bondo off ill get an idea of how bad it really is and plan a course of action from there. thanks guys
 
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Old Sep 5, 2013 | 03:28 PM
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By the looks of it I'd suggest dynamite.
 
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Old Sep 5, 2013 | 03:39 PM
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Never seen an all bondo bed before. In the long run it may be better to replace the bedsides.
 
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Old Sep 5, 2013 | 04:30 PM
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sandblasting would be ideal for an area that big. and it'll clean up the rust underneath. but like mentioned before no matter how you do it, it's gonna be messy. so I suggest a good respirator, paint suit, hear pugs and face shield, oh and something to cover your hair as well.
 
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Old Sep 5, 2013 | 04:59 PM
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That is going to be a lot of work to remove, and I can already tell you from the couple pics you posted that it is going to be a fruitless effort. That bed needs, at minimum, new bedsides, but I'd check the wheel wells and the crossmembers underneath to make sure its not rotted out there as well. If it is you will be far far ahead on labor and money (sand paper and respirators and etc aren't free) just to buy a box in better shape. You could start with the typical $200 box with some fenderwell rust and be a year ahead of where you are now.
 
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Old Sep 5, 2013 | 05:43 PM
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I have used heat, torch low flame . It will soften up enough to pop big chunks off. Caution with a torch though and a heat gun will do it only a little slower . I suggest looking for a better bed , i tried to give a good one away a couple of years ago, no takers and ended up in the crusher.
 
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Old Sep 5, 2013 | 06:00 PM
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I honestly would look into new bedsides. I think even with aftermarket bedsides, it will be less work. I fear that once you get the bondo off you won't have much of a bed to work with.
 
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Old Sep 5, 2013 | 08:19 PM
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for the money you are going to put into that bed fixing it, I would buy another one from California or Arizona and have it shipped...you'd be money ahead.
 
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Old Sep 5, 2013 | 09:23 PM
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torch and a wire brush it will come right off
 
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