I love this stuff for tent floors. It feels more robust than the non PU4000 silpoly, but still super light.
I used the 1.1 oz Silpoly PU4000 to make a poncho with hood and sleeves modelled on a cheap but flimsy plastic one I bought in Vietnam.
The poncho seems to work OK but so far I have not used it in torrential rain. (I use it over my normal wet weather gear and pack to keep most of the rain off. Like a tent fly, it doesn't need to be 100% waterproof to work.)
Some things to note about the 1.1 oz Silpoly PU4000:
1. The weight is a bit hopeful. I measured it at 1.8 oz (62 g/m²) not 1.1 oz (37 g/m²). That is 66% more than advertised. Still, the poncho came out at 7.7 oz (220 g) about half a bought one but 4 times my flimsy Vietnamese one.
2. The website is a bit confusing about which side is which. The duller side should face the rain and the shinier side inwards.
3. It maybe "Ripstop by the Roll", but this fabric, despite having a ripstop pattern, rips very easily, especially along the roll direction. Handy for cutting (!) but it meant I could not use snap fasteners which I had originally intended. Make sure you reinforce any holes.
I used this fabric to make a tent. I used this for the roof and doors. I was easy to work with, lightweight, and very waterproof. I’m very satisfied.
Quick ship. Sturdy fabric!
I was a bit intimidated to use this material, coated lightweight fabrics are notoriously difficult to work with. However, this material is a diamond in the rough, very easy to handle for all your MYOG projects. It’s slightly stiff, which makes laying out and marking up easy. I had no issue feeding the material through my sewing machine, didn’t even need to do the “tissue trick” to prevent slipping. Looking forward to using this material on future projects!