Results 1 to 6 of 6
  1. #1
    Senior Member digrat's Avatar
    Join Date
    Feb 2009
    Location
    Lexington, KY
    Hammock
    GT
    Tarp
    DIY Tyvek
    Insulation
    DIY Full UQ
    Suspension
    Whoopies & Toggles
    Posts
    135
    Images
    3

    Grommets in Tyvek

    I made a nice big Tyvek tarp for myself a few months back, and used brass grommets in each of the corners. I reinforced the corners with another layer of Tyvek and added some tape, then grommetted.

    So here are my questions:
    1. I think this would weaken the fabric less than sewing--no "postage stamp" effect. Do you agree or disagree? Why?
    2. This seems like it would be more or less equal weight than adding a Tyvek loop and anchoring it with tape. Can you think of why a loop would be better to use than a grommet?
    3. What are the downsides of using grommets that I'm not thinking of?
    -Digrat
    "Better than a map!"

    Code:
     _   _
    ( )_( )
     (o o)
      \ /
      >.<

  2. #2
    Senior Member
    Join Date
    Aug 2009
    Location
    Nova Scotia, Canada
    Hammock
    HH Xped w/2QZQ#4 and HH ULBA
    Tarp
    HH Hex
    Insulation
    HG Phoenx|7DBurrow
    Suspension
    Whoopie Slings/DCs
    Posts
    177
    good questions.
    i just posted looking for advise on making the anchor points on tyvek tarp beaks.
    Bring a GPS...It's awkward when you have to eat your buddies.

    My YouTube Channel

  3. #3
    Senior Member digrat's Avatar
    Join Date
    Feb 2009
    Location
    Lexington, KY
    Hammock
    GT
    Tarp
    DIY Tyvek
    Insulation
    DIY Full UQ
    Suspension
    Whoopies &amp; Toggles
    Posts
    135
    Images
    3
    My grommets have been holding just fine, but I figured I'd pull on the collective knowledge of the group before I make another tarp the same way.
    -Digrat
    "Better than a map!"

    Code:
     _   _
    ( )_( )
     (o o)
      \ /
      >.<

  4. #4
    MedicineMan's Avatar
    Join Date
    Dec 2006
    Location
    Roan Mountain,TN
    Hammock
    Traveler with HNO AirShip
    Tarp
    HNO AirShip
    Insulation
    Leiglo 5/50
    Suspension
    Everything Dutch
    Posts
    5,596
    Images
    76
    I've seen those grommets
    How many total setups have they been through?
    What is the harshest wind they've endured?
    I'd say the physicists will chime in shortly but if it were me I'd add the reinforcing tape then do a spiderweb network of sewing lines radialy from the corner...at the corner the loop would attach so when its pulled it pulls more of the total tarp.
    A grommet is a hole, hole=missing material--would have to be inherently weeker; however the grommet itself is metal and stronger but in itself presents an edge to 'cut' through the fabric toward the corner.....just an amateurs thougts!

  5. #5
    Senior Member digrat's Avatar
    Join Date
    Feb 2009
    Location
    Lexington, KY
    Hammock
    GT
    Tarp
    DIY Tyvek
    Insulation
    DIY Full UQ
    Suspension
    Whoopies &amp; Toggles
    Posts
    135
    Images
    3
    Quote Originally Posted by MedicineMan View Post
    How many total setups have they been through?
    Maybe a dozen. This is the improved version from the first one that tore out on the first hang--I didn't reinforce the corners with double tyvek.

    Quote Originally Posted by MedicineMan View Post
    What is the harshest wind they've endured?
    Since my anemometer is too heavy to pack with me... I'd say relatively strong gusts but nowhere near heavy winds.

    Quote Originally Posted by MedicineMan View Post
    I'd say the physicists will chime in shortly but if it were me I'd add the reinforcing tape then do a spiderweb network of sewing lines radialy from the corner...at the corner the loop would attach so when its pulled it pulls more of the total tarp.
    I'm still hesitant to stitch through the tyvek. Perhaps long thin lines of tyvek tape would reinforce just as well?

    Quote Originally Posted by MedicineMan View Post
    A grommet is a hole, hole=missing material--would have to be inherently weeker; however the grommet itself is metal and stronger but in itself presents an edge to 'cut' through the fabric toward the corner.....just an amateurs thougts!
    Yeah, that's why I'm going back and forth on this. If I don't fasten my loops properly, then they'll either tear the tyvek or pull right out. If I don't apply my grommets properly they either tear the tyvek or pull right out. I'm just not sure which is the lesser of two evils. From what I've seen, not many folks here use the grommets, but I wonder what the reasoning is. (Although not many here use tyvek for a tarp either, and I think that may have something to do with it since sil is easier to sew.)
    -Digrat
    "Better than a map!"

    Code:
     _   _
    ( )_( )
     (o o)
      \ /
      >.<

  6. #6
    MedicineMan's Avatar
    Join Date
    Dec 2006
    Location
    Roan Mountain,TN
    Hammock
    Traveler with HNO AirShip
    Tarp
    HNO AirShip
    Insulation
    Leiglo 5/50
    Suspension
    Everything Dutch
    Posts
    5,596
    Images
    76
    We need a chemical engineer to chime in because crazier things have happened that a glue exists that acts like pvc when it chemically bonds....then again maybe it would just melt!

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •