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  1. #1
    Senior Member stevebo's Avatar
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    sil nylon edge fraying?

    Hey guys, Im making a rain coat out of sil-----I dont have a hot knife, so I cut the fabric with a rotary cutter. I usually sear the edges of the cut with a candle to keep it from fraying (I really need to get a hot knife soon!) with sil, do I still need to do that? (or does the seal coat keep it from fraying?) Thanks!
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  2. #2
    Senior Member gargoyle's Avatar
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    I'll assume your going to seam seal the jacket when done??

    If thats the case, then use seam seal on any exposed edges when your finished.

    If searing the edge gives you peace of mind, go for it.
    No harm in doing so.

  3. #3
    Senior Member dangerous's Avatar
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    it shouldn't fray past the point of what will be taken up in your seams. if you do heat seal be very careful not to melt away to much material, clothing items need good straight seams.
    -Jon-

  4. #4
    Formerly octothorpesarus mudsocks's Avatar
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    Do you have access to a soldering iron?

  5. #5
    Senior Member anvil440's Avatar
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    Place the edge of the fabric in the middle of the presser foot and sew a zig-zag into the edge. This video may help out...click here.

    (This stuff is covered in the video)
    There's also something about cutting the fabric. Fabric has WEFT and WARP. The edge you cut determines how well the fabric will drape and how much fray your edges will have. I forget which is which, but Google it. Also, Pinking Shears (scissors that cut a zig-zag line) will help to stop fraying.
    Last edited by anvil440; 12-13-2013 at 09:35.

  6. #6
    Senior Member FLScouthanger's Avatar
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    If your injector has an overlock stitch setting it works pretty well to mitigate fryed edges...

  7. #7
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    I've never had trouble with fraying edges on coated fabrics like silnylon or PU-coated ripstop, and I'd never bother searing the edges or hot-cutting coated fabrics.

    That said, I try to use rolled hems and flat-felled seams where possible. Keeping the cut edge inside a seam will prevent fraying.

    If you're concerned about fraying, throw a piece of scrap fabric into the laundry and see what happens - you'll get your answer.

    In my hands, overlocking the fabric edges doesn't work well on thin nylon and polyester fabrics. And in fabrics that really 'like to fray' (some uncoated nylons), overlocking doesn't do much good anyway. AFAIK, overlock stitches work best on knits.

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