1.1 oz Silpoly PU4000 - Ripstop by the Roll

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1.1 oz Silpoly PU4000

$7.30 /yd
Blaze Yellow
Burnt Orange
Charcoal Gray
Dark Brown
Dark Olive
Foliage Green
Green Tea
Moroccan Blue
Olive Drab
Racing Red
Which should I pick and why?
No order minimum. Choose this option to send fabric cut and folded (like a blanket). See continuous cut policy for full details on max cut lengths.
  • This is the high water-resistance version of our  2nd generation 1.1 oz Silpoly line of coated materials. This fabric is coated with a silicone/PU layer on one side, then a multi-pass PU coating on the other to create a highly waterproof/non-breathable fabric.

    Same silpoly benefits of   lower water absorptionand   increased UV resistance, but with a much  higher waterproof rating. The PU4000 also has less bias stretch, making it easier to sew.

    Great for projects such as tent/shelter floors, ground sheets, tarps, ponchos, gear sacks, pack covers, or any application where lightweight, highly waterproof/windproof fabric is needed.

    *Note - shiny side is PU4000 and dull is sil/PU. If seam sealing this fabric, you will need a sealant intended for PU coated materials (e.g. Seam Grip). 

    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 trimmed
    Weight  1.1 oz/yd 2 (*~1.4 oz/yd 2 with sil/PU + PU4000 coating)
    Denier 20D x 20D 
    Finish/Coating Sil/PU mix one side, multi-pass PU4000 other side
    Hydrostatic Head (i.e. waterproof rating) ~4000 mm 

Customer Reviews

Based on 35 reviews
Very happy with my purchase

I purchased 0.5oz/yard noseem mesh and 1.1oz sipoly PU 4000 to make a net tent. Service from RSBTR was very fast. Before I knew it the product was on its way to me. Very happy with the service. Would definitely order again.

0.5oz mesh is fine, but feels strong enough. Nice feel in the hand. I found it a bit tricky to sew, but my sewing machine is old, so that may have contributed. Still, I'm happy with the result. I folded the seams to get three or four layers of mesh to sew together.

The 1.1oz Silpoly PU 4000 was very easy to sew.

Hi MWebb, Thanks for the review! The NS50 mesh can be tricky to sew on any machine, but it sounds like you've got the hang of it.

1.1 oz Silpoly PU4000


1.1 oz Silpoly PU4000

Great material

Great material for a tent floor. Very easy to sew.

Nice Fabric

This is pretty lightweight fabric. I look forward to making my waterproof clothing.

The company was a pleasure to deal with.

Thanks Minerva! Send us some picture of your clothing when you are done. we would love to see your finished projects. Let us know if you need anything.
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