Sil Bivies, Why so Slippery?

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Home Forums Gear Forums Gear (General) Sil Bivies, Why so Slippery?

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    Jeremy Best


    Recently I purchased the Oware bivy with the sil-nylon bottom. The thing is so slippery, I fight all night to stay on my pad. If the pad is on the inside I slip even more than if it were on the outside. My pad is a UL 3/4 length Thermarest. What are you guys doing to prevent this? Possibly ditch the Thermarest and go with a Mt. Washington pad?

    Dane Burke


    Locale: Western Washington

    I use a standard blue foam closed cell pad in my Vapr Bivy with it’s silicon coated bottom and I don’t have any problems keeping the pad under me. If you really didn’t want to give up your therma rest you might try putting a closed cell pad between the two slippery surfaces of your thermarest and bivy. You might use one of the very thin ones sold by Gossamer Gear.

    paul johnson


    Locale: LazyBoy in my Den - miss the forest

    read one or two weeks ago, a post in another thread on this subject.

    the poster recommended adding drops of silicone seam sealant/grip to either the bottom of the pad or the floor of the bivy (i forget which). this cured the problem for him.

    Standard disclaimer req’d by my legal dept:
    if you can’t find that post, you might start with the pad – it’s cheaper to replace if it gets messed up w/the sealant/grip. you wouldn’t want to “mess up” or damage the bivy in any fashion. if it works on the pad, fine, problem solved. if not, then add some drops/dabs/lines to the bivy. i’m thiinking, not having tried this myself mind you, that silicone sealant/grip should be ‘ok’ for the silnylon floor of your bivy. it’s used to seam seal silnylon, isn’t it?!!

    Also, if you like Dane’s idea (good idea Dane, wish i had thought of it) of using the 1/8″ thick (not the 3/8″) GossamerGear ThinLight pad, you might be able to get by with cutting 2 or 3 strips the width of your thermarest & maybe 3″-6″ tall(? long?) & afixing/gluing them to the underside of the thermarest. this would save a small amt of wt not using the full length of the 1/8″ ThinLight pad. you could start by afixing them using a thin double-sided tape for testing purposes, then if the tape is no good as a long term sol’n, use an adhesive to permanently afix the strips to the thermarest. obviously, you could also, if you prefer, afix the entire Thinlight pad to the underside of the thermarest.

    hope this info helps.

    Jim Colten
    BPL Member


    Locale: MN

    An earlier posting mentioned
    this idea
    for taking the slip out of sylnylon

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