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Bondo 101 questions

Z

Zero_Distortion

Gawd
Joined
Aug 5, 2004
Messages
572
I searched high and low for some bondo techniques but I haven't found anything other than "use bondo to fill the holes" If anyone has some good info or better yet links with pics I'd love to hear it.
 
I thought the instructions on the back of the can was enough, it was for me. ;)
 
What are you trying to do? You can do just about anything with it.
More hardener=get harder faster
is pretty much the only rule. Just wear gloves and mold it in to whatever shape you want. Sand
Paint
rinse and repeat
 
Well I wouldnt say anything. Bondo is ment as a filler so I wouldnt try to use it for large areas. It will crack easy where there is movement so be sure you are putting in in a spot that will not bend. You will need to put it on in layers, try to build it up higher than you want it and then sand it down. Then put alittle more on and sand it down. Then more and sand. Then you will want to put on spot filler (looks like hardner) and sand that down. Then you will have a smooth surface. you want the mixture to turn a kind of peach to pink color. if it hardns to fast it will not bond with the surface well. Make sure you rough up the surface you are applying to so it can bond with it well. And most important...Just play with the stuff, practice on something else first just so you get the feel for it. The stuff is prety cheap so dont worry about wasting it. It will harden faster than you can apply it most the time so just scrape the wasted stuff off and make a new mixture.

JEEVES
 
if you want to span a large area you can always try some fiberglass. I've always used bondo for filling in vents, holes etc... and fiberglass and platic resins for things like add-on case tops fit with radiator housings etc.
 
to a certain amount of Bondo, squeeze out just a strip of hardener across it. Personally, i would use something better than Bondo like PPG Technifill or Evercoat Rage.
 
Bondo......


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Aim - Mis7eR B

...............if u have any questions.
 
Thanx fellas, small holes is one thing, I have a few cases with large deep grooves in them I would like to fill and make flat, the grooves are about a half inch to 3\4th inch deep and run up the whole bezel. I wasn't sure whether to grab the orange tube and just fill it and push it down with my fingers or apply it in thin layers and do it like 37 times till the case is flat again. Also when Im done and it hardens can I cut a blowhole through the bondo or will it crack instantly? Basically what Im doing is very similair to what Bill Owen did with project Malfunction http://www.mnpctech.com/GalleryMal.html and http://www.mnpctech.com/mal.html so I basically want to flatten the bezel so I can utilize the space better for mounting switches\LEDs\blowholes e.t.c.But Im not sure if I can drill holes through the bondo'd area's without worry of them cracking.
 
Sorry to thread jack, but it's on topic. I'm currently bondoing a peice to the front of my plastic bezel...how worried should i be of cracking it with use of opening and closing the bezlel door? I think fiberglass may have been a better choice form the start, but i'm not looking to spend a fortune. Now thi smay sound silly, but once painted, would the paint help to hold it together? Kinda like a structual coat or something? I appologize if this sounds stupid.
 
With project malfunction and your case, it is better to cut the hole first then put ur tube in, then bondo. Holesawing through bondo is not fun and will be a PITA.

As for the painting, no it will not prevent the bondo from craking, keep in mind if you do paint bondo, use a flexible primer/filler before you BC.

-Bryan-
 
Mr.B said:
With project malfunction and your case, it is better to cut the hole first then put ur tube in, then bondo. Holesawing through bondo is not fun and will be a PITA.

As for the painting, no it will not prevent the bondo from craking, keep in mind if you do paint bondo, use a flexible primer/filler before you BC.

-Bryan-
Click to expand...
Whats BC? base coat?
 
Yah sorry about that, painter lingo, forget about that sometime.
 
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