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1.1 oz Silpoly PU4000

$6.25 /yd


1.1 oz Silpoly PU4000

$6.25 /yd

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

    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 absorption and 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 

    Data Sheet

    Download here


Customer Reviews

Based on 59 reviews
Light and strong

The fabric is as expected. Can be bonded with seamgrip wp or fc.

Great material

I made a 9 x 9 flat tarp with the sil/pu poly fabric. Easy to work with, looks to be very waterproof. Quite pleased.

This is a great material for a tarp, with the PU coating it is very waterproof! We'd love to see photos of your finished tarp, be sure to tag us in photos!

sturdy, low stretch

cool fabric, low stretch and surprisingly resistant to pulling forces

This 1.1 oz Silpoly PU4000 is a really awesome fabric, and highly waterproof! We'd love to see photos of your creation, be sure to tag us on social media!

Quick and accurate delivery

Happy with my purchase

Awesome, thanks Kevin! Happy Sewing!

A really good service but warm overseas buyers of taxes

I was really happy with the products and services of your business. However, it was a big shop and a considerable amount of tax and vat charged by Irish customs. Maybe you put that on your web site but I wouldn't have bought the products if I had realised what I would be liable for. A real pity because I couldn't source the products I wanted in Europe

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