Good ideas. Thanks all
I shot off an email to RSBTR and Dutch:
"Im am exploring tarp material with designated UV ratings. Can you supply any for the popular Sil Nylon/Poly tarps please?"
Good ideas. Thanks all
I shot off an email to RSBTR and Dutch:
"Im am exploring tarp material with designated UV ratings. Can you supply any for the popular Sil Nylon/Poly tarps please?"
Last edited by Crawldaddy; 05-02-2019 at 11:43.
how about a mylar space blanket hung under the tarp? cheap, light, and worth a shot.
I am also interested in this subject because I burn easily. In another thread someone suggested putting a mylar space blanket on top of the tarp. I think I would prefer above the tarp vs. below the tarp as I imagine it would be easier to get it to stay put. Also, if it was above the tarp it would protect the tarp from UV rays also.
I figure I'll just answer here
In order to provide better UPF a material needs to be tightly woven and/or woven from a heavier yarn. The best place I've found for an explainer to this is here: https://www.skincancer.org/preventio...ing/protection
Something woven out of a smaller denier yarn like Silnylon or Silpoly isn't going to provide a lot of UPF. There are simply too many gaps in the weave. Here are a few of our more popular tarp materials under a 20x Macro:
1.1SP.jpg
1.1 Silpoly
1.9.SP.jpg
1.9 Silpoly
2.2Hex.jpg
2.2 Hex70 PU3000
HD300.jpg
HyperD 300
Our recommendation for sun shelters has always been HyperD 300. Awnings, beach shelters, etc.
We currently don't have UPF data on tarp fabrics, but it is something I'll bring up to Kyle.
The gaps are closed on calendered materials. Here's a side by side of 1.1 Ripstop Poly Cal vs Uncal.
Side by Side.jpg
any news from material side?
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Nothing scientific about my experience but I made a Moroccan Blue tarp from 1.1 Silpoly from RBTR a few years ago. Camped in FL in May 2018 using a stand because my niece had no trees. I was stunned at how little light came through. Subsequently made a lighter color one for camping in between trees. I’ve only used my dark blue when I hang without trees and shade.
YMMV. Nancy
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