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The MEMBRANE sil line was developed with one goal in mind - create the lightest, most waterproof fabrics on the market.
Same silpoly benefits of lower water absorption (i.e. no sagging) and increased UV resistance, but in a waterproof textile that's 15-30% lighter than traditional lightweight coated nylon/ polyesterfabrics.
MEMBRANE Silpoly is the ultralight version of our silpoly line of ultralight coated materials. At a finished weight of just 0.93 oz/yd 2, it is the lightest waterproof polyester textile available. The material features the following:
MEMBRANE Silpoly is best for situations where you want the lightest possible waterproof fabric outside of Cuben Fiber. Lower water resistance than the PU4000 version, but ~15% lighter.
A premium material for all projects requiring an extremely lightweight, waterproof textile. Common applications include tarps, tents, ponchos, gear sacks, pack covers, etc.
* Note: this fabric is the exact same on each side. If seam sealing, we recommend using a 100% Silicone sealant such as Sil-Net.
Want to quickly compare all our lightweight coated/non-breathable fabrics? Check out the "Fabric Comparison Guides" on our FAQ page.
| Product Details | |
| Colors | Black, Burnt Orange, Charcoal Gray, Coyote, Crimson, Dark Olive, Glacier Blue, Foliage, Foliage Green, Khaki, Lime Green, Moroccan Blue, Olive Yellow, Purple Haze, White |
| Width | 58-59" (147-150 cm) usable, selvedge trimmed |
| Weight | 0.93 oz/yd 2 finished weight (23.5 grams) |
| Denier | 15D |
| Finish/Coating | Sil/PU coated both sides (impregnated) |
| Hydrostatic Head (i.e. waterproof rating) | ~2000 mm |
SAMPLES - Trouble deciding or
want to see the fabric first hand? Head over to our samples page to order a custom sample
pack.
Recieved my order quickly. Used it to make a footprint for my Durston X-Mid 1, and it came out great.
We're glad your order arrived quickly! It's a great fabric for a footprint.
The end result was great! In general I was hoping the directions would have been easier to follow, but all in all, it worked out well. With my configuration it ended weighing 16 oz with all required cordage and stuff sack.
Thanks for your review Luke! For future projects, feel free to reach out to us, we're always here to help!
Every time I order material from them it comes super fast, exactly how I ordered, and is extremely high quality. This membrane silpoly is so lightweight and packable, yet very easy to work with. I cannot believe with a little effort you can get a 12oz, 10’x12’ tarp for $65. I have not tested the waterfroofing yet, but thank you RBTR for making this possible and I will update when it has been used in a rainstorm, I have complete confidence that it will hold up to whatever I put it through
Thanks so much for your kind review and for being a customer Evan! MEMBRANE Silpoly is awesome for tarps, we can't wait to see how it turns out. Here is a link if you'd like to share photos with us https://forms.gle/b9GB5qYXrtp2bdp96
My latest tent is a free standing double wishbone 2 person tent with removable rain fly. The Membrane rain fly only adds a out 8oz to the total 39.75oz total weight. It is stayed waterproof in light rain so far but I can't comment on sustained downpours. This material is easy enough to sew but being slippery makes large sections a bit of a chore to get beautiful rolled seams. Can't wait for RSBTR to get their new DIY gallery up and running. Even with submitting my projects on the Google form I have yet to see them shared.
Thanks so much for your review David! MEMBRANE silpoly is awesome for tents and tarps. We would love to see photos of your freestanding tent! Here is a link to share photos if you'd like, https://forms.gle/Vvm8pAGA4Q7EiHDm6
I decided to use this material to make a rain skirt. It worked out perfectly. Didn't have any issues sewing it, although I did use tissue paper as a backing when I first started sewing the rolled hem at the corners.
Thanks so much Tammie! We're glad you found the material easy to sew, the tissue paper trick is a super helpful for working with thin fabric! Thanks for sharing the photo as well, we love it!
