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Thread: Is Epoxy sandable like Bondo?

  1. #1
    Maximum Bitrate hd54321's Avatar
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    Is Epoxy sandable like Bondo?

    I'm getting ready to modify a single DIN pre-molded radio bracket into a double DIN enclosure.

    The attached picture is what I'm working with (by the way - I HATE autotoys). I'm going to first close off both front pockets (the DIN spot and the pocket) with a piece of ABS Plastic that I plan to cut to the size of each hole and epoxy it into place (with Plastic Weld).

    I want to eventually sand the dried epoxy and cut the new 2-DIN holes. Than, I would bondo, sand, bondo, sand, primer, sand, primer, paint, paint.

    Is this a good plan?

    -HD
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  2. #2
    Constant Bitrate blackbravo's Avatar
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    epoxy is alot harder than bondo, still sands just more work!
    But IMO epoxy sands better (not easier) because its harder to dig a hole in like bondo.
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  3. #3
    Maximum Bitrate Rundell's Avatar
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    Yup, epoxy is sandable, never tried bondo so don't know how it compares, but I did my entire piece with epoxy and it turned out great.
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  4. #4
    Maximum Bitrate hd54321's Avatar
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    Great! Thanks guys!

  5. #5
    Para Laura thanatos106's Avatar
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    automix plastic repair is very easy to sand.

  6. #6
    Constant Bitrate
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    You can get something called "finishing epoxy" made by z-poxy, it sands easier.
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  7. #7
    Low Bitrate jimothy's Avatar
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    I think you can also add filler (microballoons) that might make it easier to sand as well. Altimat would be the authority on that one though.

  8. #8
    Maximum Bitrate Altimat's Avatar
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    Yup thats all bondo is - polyester resin with Microballoons (or in the case of Bondo brand - Talc ) added to it.
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  9. #9
    Maximum Bitrate hd54321's Avatar
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    Thanks for all the suggestions. I began chopping up the radio bracket pictured in the first post tonight. Funny thing is, once I dremel-ed out the pocket, the mounting tabs and a 2 mm sliver of the top, everything fits nearly perfectly. No need to weld in a piece of ABS and dremel out the appropriate hole.

    The 700IDT I have is a little wider than my radio so, as you can see in the picture, it all works out very well (since the radio pocket is wider than the 1/2 DIN pocket). I just need to apply bondo, primer and paint this weekend. I'll return the Plastic Weld and get my $5 back. Wish me luck people!

    -HD

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