Your Cart is Empty


1.1 oz Silpoly

$7.50 /yd

1.1 oz Silpoly

$7.50 /yd

  • WHOLESALE - Looking to buy larger amounts at 25-40% savings? Click HERE for full roll sales.

    The 2nd generation of our silicone double coated 1.1 oz polyester ripstop (silpoly). This fabric is coated with a silicone/PU layer on each side and is waterproof/non-breathable.

    In addition to excellent waterproof/windproof characteristics, Silpoly offers lower water absorption and increased UV resistance compared to Silnylon. Particularly useful in outdoor applications to minimize sag/stretch when wet and color fade over time. 

    Great for projects such as tarps, tents, ponchos, gear sacks, pack covers, or any application where durable waterproof/windproof fabric is needed.

    NOTE - Colors with a reduced price of $5.25 /yd are being phased out of inventory. Once sold out, they will not be restocked.

    Want to quickly compare all our lightweight coated/non-breathable fabrics? Check out the "Fabric Comparison Guides" on our FAQ page.

  • Product Details
    Width ~58'' usable, selvedge removed  (147.3 grams)

    1.1 oz/yd 2 (*~1.24 oz/yd 2 with sil/PU coating)  

    (35.2 grams)

    Denier 20D x 20D 
    Finish/Coating Silicone impregnated (coated both sides)
    Hydrostatic Head (i.e. waterproof rating) ~2000 mm 

Customer Reviews

Based on 118 reviews
Mark Scheerer

This was the first time pir having the 1.1oz Silpoly. I am using it for tarp material to resell. The colours are Bright and material is very similar to sew as Silnylon. More robust then Silnylon in feel and texture. I will continue to purchase Silpoly for more projects in the future.

Thanks for leaving us a review Mark! Silpoly is definitely the way to go for tarps and tents, enjoy!

Silpoly Tarp

I bought the 1.1oz silpoly to make a flat tarp, 9ft long by 8ft (head) and 5ft (foot). It turned out amazing and super light at only 8.3oz! This stuff is a bit of a pain to work with since it’s so slippery but lots of clips and taking your time really helps. RBTR is the best!

Thanks for your review Brian! Clips are definitely your friend with sewing with the 1.1 oz Silpoly. We're glad to hear you are happy with the outcome of your MYOG tarp, enjoy!

Justin Jansen
Great looking product

Material came fast and was exactly what I ordered.

Thank you for your review! We're glad to hear that you're happy with the product and the speed of shipping.

Laura Kury
I love it!

I use Polysil to protect the insides of the dog beds I make and as a third layer in jackets to have comfy windbreakers. Lots of uses for it!

That is a great idea Laura! Thanks for leaving us a review. What lucky dogs to have custom dog beds!

Silpoly fabric is the best

Lightweight, sews well, when seams treated with silicone sealer was absolutely waterproof.

Thanks for your review, Paloma! We're glad that you found a fabric you love working with. There are so many things you can do with the 1.1 oz Silpoly!