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1.1 oz MTN Silnylon 6.6

$13.50 /yd

1.1 oz MTN Silnylon 6.6

$13.50 /yd

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    The Mountain Series is quite simply a collection of the highest performance fabrics/materials on earth. If you're searching for the best, this is it.

    Our 1.1 oz MTN Silnylon 6.6 is designed to be nothing short of the lightest, strongest, most waterproof Silnylon on the planet. 

    We start with a sheet of super strong 30D Nylon 6.6 yarn, add a ripstop grid, then finish with the highest quality 100% silicone coating known to man. 

    The result is a Silnylon with insanely high tear strength, > 3000 mm waterproof rating, and finished weight of ~1.5 osy. 

    The 1.1 oz MTN Silnylon 6.6 is a great fit for projects/products that require the absolute best combination of weight, durability, strength, and long-term waterproofing.

    Typical applications include tarps, tents, ponchos, gear sacks, pack covers, or any application where high-performance, waterproof/windproof fabric is needed.

  • Product Details
    Width 61'' (~59" usable)
    Weight  1.1 oz/yd 2 (~1.5 oz/yd 2 with silicone coating)
    Denier 30D x 30D
    Yarn High-tenacity Nylon 6.6
    Finish/Coating Silicone coated both sides (impregnated)
    Hydrostatic Head (i.e. waterproof rating) >3000 mm

Customer Reviews

Based on 27 reviews
Cathy Lynn Macaulay

I used it to make a waterproof, lightweight rescue sled cover. It works perfectly.

1.1 Mtn Silnylon

This was my first DIY sewing project ever. I used the Silnylon as a floor to a bug net bivy with 0.5 oz noseeum mesh for the upper section. It came out great and weighs in at 6 oz total with stuff sack. Love having access to fabrics that would be otherwise hard to get.

MTN Silicone & ultra light insect mesh

Service by RIPSTOP is faultless.
Materials were purchased for making a tent.
MTN Silicone is very strong but extremely slippery to work with.
The ultra light insect mesh is surprisingly tough but almost impossible to work with.
Lots of patience seems to be needed when working with those materials.
Despite the level of difficulty working with these materials, I would buy them again for their superior performance.

That is the love/hate relationship with making lightweight shelters. The fabric required for all of these projects tends to be slippery because of the waterproof coating. Sewing with a piece of newspaper or tissue paper behind it tends to add extra grip. Try that next time!

Barry Pratt
Mtn 6.6

Super strong and the usual great service from RBTR. My "go to" dIy supplier.

We love to hear that! Thanks for leaving us a review Barry!

JASON hemming

Good on you guys!!!

Thanks Jason!!