What do you use to fill dents on frames?
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What do you use to fill dents on frames?
I have a Trek 660 that has a significant DT dent (the old brake hits DT). I recall that it is possible to fill these. What do you use?
Thanks
RFC
Thanks
RFC
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I've done Bondo for a small fill. Nothing significant though. And it wasn't a quality frame. But its easy to apply and easy to sand afterward.
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Bondo is a temporary fix but the bondo will be more easily damaged if the brake hits the same place again. Probably not best idea if you are spending big $ or Time on a repaint.
More permanent repair technique is to fill in the divot with automotive lead body solder, or fill with brass or silver braze material.
If the headtube lug is not too close to the dent, you might also be able to roll the dent out with frame blocks.
More permanent repair technique is to fill in the divot with automotive lead body solder, or fill with brass or silver braze material.
If the headtube lug is not too close to the dent, you might also be able to roll the dent out with frame blocks.
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See this thread for results;
https://www.bikeforums.net/showthread...ents?highlight=
Ive made my own wooden frame blocks from a 4"x4"x4" block, just be sure to align your drill hole and saw cut with the woodgrain so it does not split the wood when you clamp down.
Alternately, paragon sells aluminum block pretty affordably;
https://www.paragonmachineworks.com/c...&category=TB07
https://www.bikeforums.net/showthread...ents?highlight=
Ive made my own wooden frame blocks from a 4"x4"x4" block, just be sure to align your drill hole and saw cut with the woodgrain so it does not split the wood when you clamp down.
Alternately, paragon sells aluminum block pretty affordably;
https://www.paragonmachineworks.com/c...&category=TB07
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Bondo is not so temporary if it's applied correctly.
This one has small spots of bondo in just about every tube. It looked like someone had beat on it with a wrench. I had to roughen the tubes with coarse sandpaper, skin them with filler and then power sand them. I painted it satin to hide any flaws in my work, but it turned out not to be necessary. I'm planning to repaint it with gloss urethane when I get around to it.
This one had a bunch of small dings in the top tube. I actually painted the tube glossy black before I painted it red so that any flaws would show up. It's a rattle can job and it's holding up very well.
This one has small spots of bondo in just about every tube. It looked like someone had beat on it with a wrench. I had to roughen the tubes with coarse sandpaper, skin them with filler and then power sand them. I painted it satin to hide any flaws in my work, but it turned out not to be necessary. I'm planning to repaint it with gloss urethane when I get around to it.
This one had a bunch of small dings in the top tube. I actually painted the tube glossy black before I painted it red so that any flaws would show up. It's a rattle can job and it's holding up very well.
Last edited by Grand Bois; 06-01-11 at 05:17 PM.
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I don't recomend bondo it can trap moisture under it and allow rust to form. Although it does take a long time to form. JB weld is a good solution and to be peroid correct brass or body solder.
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