DCF Waterproof sock?

DCF is probably not the right material for socks. I would get creased and then stressed a lot, what would lead to quick development of pinholes.

I’ve tried many materials for making ultralight WP socks. Coatings on most fabrics do not last long in this application. Finally, I had a success with a TPU foil (bought at extremtextil.de, no longer available there). What matters is the thickness of the waterproof layer the absence of the fabrics make it lighter and elastic. The rubbery TPU is surprisingly tough, it shows no damage after days of use. I welded it using an iron. A pair of socks weights 37g / 1.3 oz.

Thank you for sharing.  The TPU foil sounds awesome, even if I don’t know what TPU stands for!  I’ll have to start my search for some. Going to Peru next year and def want to take a WP sock that works for days.

TPU = themoplastic polyurethane. It’s the material used for coating the heat-sealable fabrics as well.

I’ve looked up that order, here are the details on the material I used: “TPU-film, transparent, 0,1mm thick, 110g/sqm”. It also says that it’s intended for kite bladders – maybe it can be found in some kite supplies shop as well.

.Bill Fornshell made a pair in 2005 with instructions CUBEN FOOTIES-VBL’S-0.22OZ A PAIR .Bill was always making interesting gear and clothing from DCF(Cuben) long before most people or cottage company’s .Just thought you might find them interesting.

I’ve been looking online for a source for TPU with these specs but have come up dry. (get it :-))  Anyone have a source?

I’ve found a possible source of a lighter film ( http://drtuba.eu/product/tpu-film-and-film-patch ), I suppose there are other kite shops selling this. Not easy to search for, the results are full of offers from the Chinese manufacturers – if you’re ready to buy at least 500kg.

The easiest and cheapest way to get TPU is probably to buy it as paint protection film for cars from some low cost chain that sells car spare parts. I haven´t tried it yet so I´m not sure how well it works for socks.

I appreciate the inputs! I may be losing my pioneering spirit on this one, but I’m not sure I will end up with the performance that I’m looking for if I buy TPU manufactured for other purposes.

extremtextil sells tpu:https://www.extremtextil.de/search?sSearch=tpu
you can also use heavy pu coated fabric sew and tape it (http://www.exped.com/international/en/product-category/sleepingbags/vbl-socks-l)
https://ivovanmontfort.blogspot.com/2016/02/vbl-sokken.html
but you must tape the coated site.
https://www.extremtextil.de/en/seamtape-for-coated-fabrics-22mm.html is better for taping
neoprene socks are also a good alternative
The problem is your sweat that still makes your socks wet when the outside is damp proof