pack fabric

[Jerry Adams]

thanks Sam

they say it’s high density (very high thread count).  That would help make it waterproof – smaller gaps between threads

yeah, I use seam grip to seal seams inside.  I think it also strengthens the stitches.

[Jerry Adams]

“Its interesting hearing where DCF and DP fabrics seem to wear.”

I cans see pinholes in the middle of the pack, not a high wear area.

I think it’s like the fabric wrinkles or something in use, and when I’m packing, unpacking, drying it out,…

I think it’s that there are two layers, the outer fabric and inner plastic like waterproof layer

[Michael B]

It seems reasonable to expect that a membrane would fail after being subjected to bending stresses, similar to a paper clip. I wonder how the process of creating silnylon or silpoly differ from the process of creating the waterproofing layer of pack fabric? Does silpoly/silnylon fail in similar ways? To me, if I ever use DCF for a pack, it will be for reasons other than waterproofing, and I’ll continue to use my liner.

BTW, I like your idea of using seam sealer to strengthen the seams. I think I’ll steal that one, thanks.

[Sam Farrington]

Jerry,

Should have added that Dutchwear Gear has an around 200D Robic. He says the thread on the ripstop reinforcement threads are HDPE (high density polyethylene), which might mean either Spectra or Dyneema, both stronger than nylon.  Might be worth a look.

 

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