Originally Posted by
sr1355
We've worked with both, here is our understanding of the two and the major differences.
20d XL Sil Poly from RBTR is Sil/PU coated both sides, both sides of the fabric have the same performance specs and either side can be sealed with silicone. 2500mm HH
20d Wide Xenon from Dutch is Sil/PU coated one side and PU coated on side, both sides of the fabric do not have the same performance specs. Full PU coated side is the inner and needs to be seam sealed with seam grip. 1500mm HH
Both will keep you dry, personally I prefer the true double coated Silpolys as the fabric doesn't seem as stiff.
A XL SilPoly PU4000 (not available) would be a more apples to apples fabric to compare to Wide Xenon as it to is a PU coated fabric.
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