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Thread: Seam sealer?

  1. #11
    slowhike's Avatar
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    Quote Originally Posted by mixinmaster View Post
    I've always just hand-smeared silicone straight out of a caulk gun.......Bought tubes from a hardware store, made sure I was outside (after the first time) and just shot a bead straight across the seam. Smeared in by hand, making sure to cover ALL the thread and then some.
    first to be sure everyone reading this understands, we are talking about sealing tarps, etc made of silnylon.
    coated tarps usually need a different product.

    that may very well work mixinmaster but from what i've read & seen in action, there are at least a couple real advantages to mixing the silicon w/ a thinner like mineral spirits or clean, white gas (stove fuel).

    1)...when the thinning agent thins, the silicon more easily is worked into every available space.

    2)... the thinning agent also thins/softens the silicon that is already there in the silnylon fabric, causing the new & the original silicon to permanently mix & bond.
    don`t leave the CREATOR out of the creation!

  2. #12
    slowhike's Avatar
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    of course Pan recommends using Silnet (by McNet) just as it comes, & of course that's the way that company intended it to be used.
    maybe the silicon has enough bonding ability it's self??? i'd be interested to know more.
    don`t leave the CREATOR out of the creation!

  3. #13
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    i've been doing the same for a while, except that i noticed that with high use stuff items, like sacks and seams, the silicone sealant would eventually flake off like dead skin. This has happened with 4 different DIY projects.

    Anyone have the same thing happen?

    Any fixes for it?

  4. #14
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    ps i followed the suggested ratios recommended somewhere on this site or WB, i think it was 1 part sealer, 3 parts thinner, by weight, not by volume.
    could be wrong though, i am not looking at the stuff right now.

  5. #15
    I personally had flaking when using over-the-counter stuff...... I will say again that I have had success, good success, when using silicone on silnylon seams. It adhered and remained as such for long periods of time. While it adds more weight than thinning it down I'm sure, I believe it to provide more than adequate protection. It has held up on some what abused stuff sacks, and even a food sack that was exposed to multiple downpours in the trees for the better part of 500 miles. Never noticed a leak.

  6. #16
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    Quote Originally Posted by FanaticFringer View Post
    yep,thats what i use neo
    the matrix has you

  7. #17
    Senior Member hacktorious's Avatar
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    Nylon Tafta

    What should I use to seal seams in Waterproof Nylon Tafetta (210T)? Will SilNet work OK for that too? Thanks.
    Last edited by hacktorious; 04-28-2008 at 15:45. Reason: typo, forgot to write, "seams in"
    Scott
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  8. #18
    Senior Member Bug-Bait's Avatar
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    I used Silnett on my new JRB tarp right out of the tube. It seemed thick but worked really well over the weekend at the MAHHA Hang. It rained a lot and not a drop of water came through. I also sprinkled fragrance free talc on top of the seam seal after it dried for a couple of days. I was told that it would keep things from "sticking together". BTW, I was able to get the fragrance free talc at a scuba shop.
    Last edited by Bug-Bait; 04-28-2008 at 18:53.

  9. #19
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    Quote Originally Posted by hacktorious View Post
    What should I use to seal seams in Waterproof Nylon Tafetta (210T)? Will SilNet work OK for that too? Thanks.
    SilNet or silicone or silicone adhesive is only for silnylon products. You probably need something for urethane and can find several products on this page from REI http://www.rei.com/Search.do?cat=450...=cat%2C4500661
    Youngblood AT2000

  10. #20
    Senior Member BillyBob58's Avatar
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    The flowable silicon stuff from Advanced Auto seems to have worked real well ( for sil-nylon only).

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