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Thread: help with filling etc

  1. #1
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    help with filling etc

    Ive been lurkin around this site for quite some time now reading many of the articles and seeing what a great job a lot of you have done with your cars. I have all of the wiring and everything down, the only problem i have and am nervous about is the bondo/bodyfilling etc. I know that i need to start off by making a model using something like MDF board and then using a strong adhesive to attach it to the casing of the xenarc monitor. Then from what i understand, i get some kind of body filler and get it the general shape that i want by sanding and filling and repeating. then i use something like bondo to fill anything small to make it look nice and finished. If any of this is wrong, please correct me. My question is, since i dont want to order the bondo and body filler online, where do i find these products and how do i know if it will work well?

  2. #2
    FLAC evandude's Avatar
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    I've never done any of that myself, but I do know you can buy bondo at home depot (and probably other home improvement stores as well) and I'm sure you can find it at auto parts places as well.
    But don't take it from me! here's a quote from a real, live newbie:
    Quote Originally Posted by Viscouse
    I am learning buttloads just by searching on this forum. I've learned 2 big things so far: 1-it's been done before, and 2-if it hasn't, there is a way to do it.
    eegeek.net

  3. #3
    Constant Bitrate Willy-Mach1's Avatar
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    Bondo and body filler are the same thing....Bondo is just a brand with a lot of different products. What you want is body filler to get the shape you want (Bondo or any other brand), then spot putty or automotive putty to fill in any small holes you get left with. My advice is to use the body filler as much as you can and sand it real good and only use the putty in small amounts and for small imperfections, this will give you a much better and stronger finished product.
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  4. #4
    Tainted Love Cris's Avatar
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    Any home depot store should have it. The only thing is, BONDO is a brand. It also makes body fillers. I guess you've already read Altimat's sticky, that's of GREAT help. Basiclly you got everything correct, however you've stopped right before primer... The thing is, it's really not that hard to do, but it's a VERY meticulous job if ou want a perfect finish, so arm your self with a lot of patience.

  5. #5
    Maximum Bitrate Altimat's Avatar
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    The most common mistake I see here is using too fine of a paper. I use 80 and 180 to work with filler. Sand it lightly with something a bit finer right before priming but thats it. Then after priming use 240 and 400.
    Fabricator

  6. #6
    Tainted Love Cris's Avatar
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    Quote Originally Posted by Altimat
    The most common mistake I see here are using too fine of a paper. I use 80 and 180 to work with filler. Sand it lightly with something a bit finer right before priming but thats it. Then after priming use 240 and 400.

    By mistake you mean the end result looks "glossy" or too shiny...?
    Another common mistake is not sanding enough. The sanding does pay off in the end.

  7. #7
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    Quote Originally Posted by Cris
    By mistake you mean the end result looks "glossy" or too shiny...?
    Another common mistake is not sanding enough. The sanding does pay off in the end.
    He's quite right, It's highly suggested that you never exceed 180 grit when sanding filler. Primer should be applied to fill in sand scratches. Also, lower grit will make the surface much flatter, as higher grits tend to contour the surface. Depending on the work, i generally start with 36 grit, then proceed to 80, and stop there. Spray 2 coats of polyester primer, guide coat, block sand, and spray 1 final coat, block with 400, finish with 600. You will have a perfectly flat surface to paint, vinyl, etc.

    Granted, spraying poly primer, block sanding, yada yada yada, is of auto body jargon, but it helps to know. Gl Hf =D

    -John

  8. #8
    Maximum Bitrate Altimat's Avatar
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    When you sand filler you are just shaping it and making it straight and level. Primer will fill the sandscratches later. You can't get anything straight with fine sandpaper. Use sandpaper wrapped around a custom-made block for almost everything you sand if you want a straight and accurate part. You also need some sandscratches for decent topcoat adhesion. I don't go finer than 400 unless I'm spraying a fine metallic base and we usually aren't on these dashes.

    I've used 36 on filler but not on a little dash part. If you need 36 grit you should be working on your filler application techniques.
    Fabricator

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