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  1. #1

    How can i tell? fabric question

    So I stopped at my walmart today and found what appears to be some form of ripstop nylon. Unfortunately, it says "PROMO FABRIC" as the only source of ID on the bolt of fabric. How can I tell if its 1.1 or 1.9 or if its treated or if it actually is ripstop nylon? I went ahead and picked up 3 yards x 60" for a hammock sock because it feels and looks so similar to the material my pack is made of and i'm only out 3$ if not. lol.

  2. #2
    slowhike's Avatar
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    Zorminster... welcome to hammock forums.
    we've got to come up w/ an article telling about identifying fabrics from the $1.00 bin.
    we were just talking about that on another thread.
    i'll see if i can find that thread & get back to you if someone doesn't beat me to it. ...tim
    don`t leave the CREATOR out of the creation!

  3. #3
    Senior Member stoikurt's Avatar
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    Decoding Fabric Type

    Take a look on this page. There are some links to help determine some fabrics based on burning small samples. Pretty neat.

    Oh, and welcome to the forum.
    Stoikurt
    "Work to Live...Don't Live to Work!"

  4. #4
    slowhike's Avatar
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    Quote Originally Posted by stoikurt View Post
    Take a look on this page. There are some links to help determine some fabrics based on burning small samples. Pretty neat.

    Oh, and welcome to the forum.
    thanks stoikurt.
    don`t leave the CREATOR out of the creation!

  5. #5
    Senior Member Ewker's Avatar
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    Quote Originally Posted by stoikurt View Post
    Take a look on this page. There are some links to help determine some fabrics based on burning small samples. Pretty neat.

    Oh, and welcome to the forum.

    I saw a bolt of green ripstop this past weekend. It is pretty slick so it might be some silnylon but I don't know for sure.

    That would be nice but I am not sure Wal Mart is gonna let you burn a piece in the store

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    The fabric I got at WalMart is not waterproof, so it's not silnylon. I did the suggested thing of putting the fabric over a glass and securing with a rubber band and pouring some water into an indentation. It did take about a half hour for the water to start seeping through. It was dry again after I poured the water off in just a few minutes. I did have a wet spot in the fabric where the water had been standing at first though. I got some green, don't know if it's the same type fabric you saw, ewker.
    Bad spellers of the world Untie!

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    The easy way to figure out the weight is to weigh it. If your piece is 9'x5' it is then is 5 square yards. The weight of the fabric divided by the area in square yards (in this example 5) should come close to either 1.9 or 1.1 oz.

    Untreated ripstop will fray around the edges. Sil or DWR will not.

    If something here doesn't make sense, let me know and I'll try to explain better.
    “We can't solve problems by using the same kind of thinking we used when we created them.” - Albert Einstein

  8. #8
    slowhike's Avatar
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    i've loaned out my "hammock camping" book (by ed speer), but if any one has one handy, they could share the formula he gives there for determining fabric weight.
    don`t leave the CREATOR out of the creation!

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    Senior Member angrysparrow's Avatar
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    Taken from Ed Speer's 'Hammock Camping', per slowhike's request:

    Calculating Fabric Weight
    Since we know that 1yd squared = 1,296 inches squared, we can take any large piece of fabric with known length, width, and weight and figure out the weight per square yard.
    (length in inches) x (width in inches) = (area in square inches)
    (area in square inches) = (weight in ounces)
    (area in square inches) divided by (1,296 inches squared) = (area per square yard)
    (weight in ounces) divided by (area per square yard) = (weight/yd squared)
    (1 yard squared) = (_____ weight/yd squared)

    Example:
    If the length of the fabric is 144 inches (in)
    If the width of the fabric is 60 inches (in)
    If the weight of the fabric is 22.6 ounces (oz)
    144 in x 60 in = 8,640 inches squared
    8,640 inches squared = 22.6 oz
    8,640 inches squared divided by 1,296 square inches = 6.667 yards squared
    22.6 oz divided by 6.67 yards squared = 3.4 oz/yd squared
    1 yard squared = 3.4 oz per yard squared
    Example Fabric weight is 3.4 oz per square yard.
    “I think that when the lies are all told and forgot the truth will be there yet. It dont move about from place to place and it dont change from time to time. You cant corrupt it any more than you can salt salt.” - Cormac McCarthy

  10. #10
    slowhike's Avatar
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    thank you very much angrysparrow.
    we'll need to remember were that post is to use as a reference.
    thanks. ...tim
    don`t leave the CREATOR out of the creation!

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