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15551Re: Buying from Wally world

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  • Jeff
    Aug 28, 2006
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      What you'll find at Walmart...

      You kinda have to guess at the weights, but it'll come to you.
      Search the archives...this topic comes up regularly.

      Ripstop simply refers to the pattern of squares in the nylon. The
      squares are made from thicker threads that function to...you guessed
      it...stop rips before they get too big. Ripstop may or may not have
      a treatment on it, frays very easily, and you can easily blow
      through it (and so can the wind). It's great for summer hammocks
      and isn't water resistant at all.

      Durable Water Repellent (DWR) is a treatment added to ripstop nylon
      (and other fabrics). It'll usually be shiny, feel slippier, and be
      pretty hard to blow through. It'll still fray. Depending on the
      treatment, it can be very water resistant or not really resistant at
      all. It is breathable, but how breathable depends on the fabric
      weight and treatment. Lots of folks prefer DWR for hammocks,
      windsuits, stuff sacks, quilt and sleeping bag shells, etc.

      Silnylon is very slippery, hardly frays at all when new, and you
      can't blow through it. It's not breathable so condensation can be
      an issue with certain uses (rain gear, hammocks). It's waterproof
      to a certain water pressure depending on fabric weight and
      thickness. Sil is good for tarps, stuff sacks, snakeskins, ponchos,
      etc. Not many hammock models are made from non-breathable materials
      like silnylon.

      Weights given are usually for the fabric before any treatment is
      applied, so 1.1 oz silnylon may actually weigh ~1.3 oz per square
      yard. I've found LOTS of 1.9 oz untreated ripstop, quite a bit of
      1.1 oz DWR (mostly gray/silver), and a bit of 1.9 oz silnylon.

      What kind of HH model do you have? Check the HH website for the
      weight of your fly and use that as a basis for your guesses on
      Walmart's fabric. Or drop the $4 on a sample pack from owfinc.com
      so you'll know for sure.

      Sooo...ripstop describes the fabric itself, DWR and sil are
      treatments added to the ripstop, and the ladies there will probably
      have no idea what the differences are. And don't mind the funny
      looks you'll get for being a guy who ACTUALLY shops in the fabric
      section. :p

      Jeff
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