Identifying SL-3 material

If it has factory taped seams it's the Sil/PU fabric.

Does that mean its not the 15D sil/pu version?
Was there a 30D 1.3oz/yd sil-only without taped seams?

I'm not sure if Golite used different kinds of silnylon in their shelters before the Sil/Pu fabric.

If it's not seam taped it is most likely the 1.7oz Sil. That is also what they used in 2008 timeframe. Just a warning my SL2 with the 1.7oz sil leaked till I sealed it the seams (even though Golite claimed the threads expanded and didn't need seam sealing). I also have a SL5 that is the newer PU/sil stuff that is seam taped. It has a lighter, stretchier, and silkier feel than the 1.7oz Sil.

I much prefer the older burly 1.7oz Silnylon. If that is what you have, your on luck as that's a really nice shelter.

Thanks, I was hoping that's the one but the Hex fly was 28oz (https://www.backpackinglight.com/cgi-bin/backpackinglight/00112.html#.VYUuPfmqpBc) so I ruled it out.
Thanks for seam sealing tip, that was my next question.
Guy

Yep – Dave's right. No tape means it's the older, slightly heavier sil. One of the best shelter fabrics ever in my opinion. I still use that Hex 3 as my primary shelter. I've never sealed it and it never leaks. I'm the soggy Pacific Northwest, by the way. And I've had it in some nightmare storms. I would not be in a hurry to seal it until it proves the need.

I've tried the Sil/PU one as well and sold it right away. The older fabric seems to handle condensation much better. Shakes almost completely dry. Tough. Still very light. The PU one seemed to be a big soggy pile after even light condensation. Forget about it in the rain. The old Sil ones are very hard to find. I had two and reluctantly sold one earlier this year. Now going on almost a decade with this one. Pretty amazing sub-2 pound palace that makes wet trips infinitely more enjoyable.

My SL2 leaked but the walls on the SL3 are steeper so perhaps you will fare better. My SL2 is 21.5oz after seam sealing.

And I agree it is a much better shelter fabric than the newer PU/sil or lighter 1.3oz sil used on most shelters.

I have never had it mist like I have on 1.3oz sil or Spinn Shelters.

Thanks for your input Curt
How much does your Hex weigh?

Mine is right around 25 ounces. No mid-point tie outs is another giveaway that it's the older version. I wish it had them, but to be fair it's never "failed" me without them and it's been through at least a couple scary storms.

Thanks. That's pretty close to mine.

My Hex 3 was a little under 700g(25oz) prior to the DIY tieouts and 2nd door being added.

The latter was after a repair was needed – inadequate soil depth and consitency for the pegs in the conditions meant rocks were needed to keep them down. After 14 hrs of wind and rain, a rock had moved and abraded a hem… (User error)

It kept us dry though!