As promised, I wanted to give everyone details on the second generation silpoly or "Silpoly 2.0" as it's been dubbed. The main thing that sets the Silpoly 2.0 fabric apart from anything we've done or anything else I've seen is that it uses a "hybrid denier" construction. What this means is that the base fabric is 20D just like our silnylon, while the ripstop grid is actually a thicker 50D yarn similar to what's used in our 1.6 HyperD. Higher "D" numbers just mean that the yarn is thicker and weighs more. Typical ripstop nylon or poly uses the same yarn for both the base fabric and the ripstop grid. The long and short is that you get a much tougher, abrasion resistant fabric with even less stretch for a minimal weight increase.
Aside from the unique hybrid denier construction, I have improved the waterproofness and fixed the seam sealing problems. The issues with seam sealing first gen silpoly certainly served as a lesson learned - TEST YOUR STUFF. For Silpoly 2.0, I've personally tested the fabric with Silnet and it works perfectly. In parallel, Brian from OES tarps was kind enough to run his own test using GE 100% silicone and obtained the same results. The coating is the same Sil/PU mix on both sides, so no issues with finding the illusive pure sil side anymore.
Fabric - 20Dx50D polyester
Ripstop grid - double-grid 50 denier yarn
Coating - Sil/PU coating both sides
Finished weight - 1.27 oz/sq yd
Hydrostatic Head - ~1500 mm
Colors - Charcoal Gray, Khaki, Olive Drab, Coyote Brown, Foliage Green, Black, Olive Brown, and Blaze Orange
I'm excited to bring this to market because I think it's something new for the HF and larger outdoor community. Once you have this fabric in your hands, under your foot, and pitched in the field, I don't think you'll be disappointed. I also wanted to thank Brian at OES for being a sounding board and collaborator during the development of this fabric. Turns out we both have engineering backgrounds and REALLY like talking fabric. What a match.
I'm aiming to have Silpoly 2.0 up on the site and available for pre-order @ $6.95 /yd by this Friday, 2/6/15. I expect the fabric in house late next week and we will ship all pre-orders immediately once it comes in. Thanks!!!