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  1. #51
    Senior Member turk's Avatar
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    Quote Originally Posted by headchange4u View Post
    I edited part 2 of the Tyvek article and added SteinbergerGPPRo technique for dying Tyvek. He sent me a couple of nice pics of the dyed Tyvek.
    Nicely done. Article is looking good.

  2. #52
    Senior Member gunn parker's Avatar
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    Definitive Tyvek Article download

    Hi All
    I have created a PDF of the Definitive Tyvek Article and have uploaded it to my web site for all to download.
    Following the link will take you to one of my pages where you will find the download.
    I hope you find it as useful as I did.

    Definitive Tyvek Article
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  3. #53
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    I was reading through the tyvek articles and have several questions:

    is it a good use for an underquilt?
    if I used it for the outside of a (synthetic) underquilt, would I also need a weather shield (assuming I would for a dwr/uncoated underquilt)?
    would it make a good tarp?
    how can I remove the logo from it?
    what version would be best to get?

  4. #54
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    For those who are curious I found some data on breathability... That is Moisture Vapour Transmission Rates (MVTR) as tested using ASTM E96....

    EPDM Roofing membrane 1.8g/m^2/24hrs
    Tyvek House wrap 325-400 g/m^2/24hrs
    Soft Structure Tyvek 1,000-1,500 g/m^2/24hrs
    GoreTex Hip waders 900 g/m^2/24hrs
    GoreTex high breathable, less waterproof 5,000-9,000 g/m^2/24hrs
    Plain untreated synthetic fabrics upto 15,000 g/m^2/24hrs (or possibly higher)
    This is data I posted in another thread that might be useful here.

    The MVTR is the rate of water vapour transmission through the fabric in grams per square meter of fabric per 24 hours... To put the numbers in perspective the average human, in a resting sedentary state loses about 700-800 grams of water in 24 hr through transpiration (insensible loss through the skin,) and minor perspiration. Any stresses or activity may significantly increase this amount. (Reference)

    TYVEK is waterproof, that is better at keeping water out (or in) than DWR fabric is, and it is suitable for weather protection or tarps...

    However its less breathable so you may get condensation. Soft Structure (kite/clothing tyvek) is about 1/4 as breathable as Gore-Tex, Hard structure (housewrap) is about 1/10 as breathable as Gore-tex.
    Last edited by Rapt; 10-12-2007 at 08:55. Reason: Added reference link

  5. #55
    New Member freakflyer9999's Avatar
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    Grommets in Tyvek

    Has anyone tried putting grommets in a sheet of Tyvek. I was thinking about using a sheet that I have as a tarp and I have some grommets I could use. Would the Tyvek hold the grommets under the stress of tie outs in a moderate breeze?

    If not grommets, then how would you tie out a sheet of Tyvek as a tarp?

  6. #56
    in it for the naps oldgringo's Avatar
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    Nice article...very helpful.

    I've noticed a trend...when something "new" hits the streets, there is an initial flurry of excitement, and then it seems like everyone loses interest. Nowhere is that more evident than with Tyvek. Is there a reason why? Or does the community have a huge, collective case of ADD?
    Dave

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  7. #57
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    I think tyvek is less useful for hammockers unless it's patterns.

  8. #58
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    Tyvek seems like a wonder material! I've gotta start playing with it.

  9. #59
    Hammockmadness's Avatar
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    Do you know if Tyvek would soak up a homemade silcone coating (mineral spirits and silicone)? I've been considering making a Tyvek tarp but would like to add a waterproof coating as well.

  10. #60
    SilvrSurfr's Avatar
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    Quote Originally Posted by Hammockmadness View Post
    Do you know if Tyvek would soak up a homemade silcone coating (mineral spirits and silicone)? I've been considering making a Tyvek tarp but would like to add a waterproof coating as well.
    Tyvek is already waterproof, to some extent, so sounds like a waste of time. People have tried to dye Tyvek with limited success.
    “The way to see by Faith is to shut the eye of Reason.” - Benjamin Franklin

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