7 comments on “Cuben Fiber: The Wonder Material

    • Phil, That was actually a big concern I had with designing the grommet that way, that rain could leak through between the grommet and hiking pole. I don’t see much issue with it leaking where the grommet pinches the cuben as it’s a very tight pinch and the rain would have to somehow be “pushed” up under the grommet ridge.
      Guthook did not mention that as an issue on his reports back to me, but I don’t know if he encountered much rain either.
      That said, the GG tarp uses the same general design which led me to believe it would not be a concern, and in the end, an easy fix would be to patch a layer of cuben over the grommet with enough slack so as not to tear when the pole is inserted. Added weight, but one could even use 0.3oz cuben since it’s not load bearing in any way.

      p.s. feel free to get in touch if you have any other questions!

  1. I used a similar solution on my tarp with some leakage as a result. I never found it to be a problem since the little water that gets through just follows the pole straight into the ground. Could possibly be a problem if the pole is placed on some kind on ‘floor’ material.

  2. What glue did you (or your friend) use? I know that Cuben tape is supposedly to be strong, but glue has to be better. Thx

    • I believe the glue that he used IS cuben tape. He can explain better, but basically the “tape” is more like a strip of glue with a peel-off backing. It seems pretty dang strong so far! But I’ll tell him to get on here and explain a little more than I can.

      • Yes, I use 3m VHB tape, which is the common method for bonding other than sewing, when working with Cuben. Some DIY people have been using Hysol, which is a more proper glue like substance, though I have not tried it myself to test it’s strength vs tape. I have tried some of the 3M spray adhesives, which are supposed to be at least as strong as the tape, but they are a pain to use. Those that use Hysol say you can use it with a dauber (or sponge) which makes it easier to apply.

        That said, this is not like scotch tape, it’s a very high bond strength adhesive specifically chosen for the surface type that Cuben is. Under intended use I don’t have any reason to feel the tape will fail in it’s bond.

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