

Here are a couple of pictures of a bathtub groundsheet I made using the 7D sil/pu fabric that Rockywoods sells. It’s basically a copy of an MLD bathtub groundsheet. It’s 28″ X 86″ X 5″. The struts are carbon fiber rods inside 210 Dyneema sleeves sewn into the corners. It clips into my Deschutes tarp with mitten clips attached via shockcord. 3.5 oz.
So far I’ve been happy with the fabric. I haven’t had any water leak through. I just taped the corner seams with cuben tape but silnet or sort is recommended. I put the PU on the inside and the sil side faces the ground. The only thing that’s kind of strange about the fabric is if you pack it damp it sticks to itself like Saran Wrap. I think that’s the PU side but I’m not sure.

