Making Cuben Airtight
Display Avatars Sort By:
Shawn Forry
(porkpie73) - F

Locale: High Sierra
Making Cuben Airtight on 01/11/2010 16:59:40 MST Print View

Plan on trying to make a sleeping pad out of cuben and wonder if anyone has any thoughts or experienced with getting an airtight seal with the seams. Been chatting with Joe over at zpacks and he tried a small sample just using his cuben tape that he sells and was unsuccessful in getting a good seal. Planning on using 1.5 cuben, a GG thinlite and a salvaged thermarest valve as the basis. Should be in the 4oz range for a 3/4 pad.

Thanks Shawn

peter kvamme
(karacolor) - F

Locale: midwest
Re: Making Cuben Airtight on 01/11/2010 19:07:49 MST Print View

Huzefa reports using 1" 3M 9485 and 1" 3M 9088 as adhesive in his cuben/down air pad. Not sure what tape z-packs uses, but these might be worth a try.

Edited by karacolor on 01/11/2010 19:08:57 MST.

Steven Evans
(Steve_Evans) - MLife

Locale: Canada
Re: Making Cuben Airtight on 01/11/2010 21:15:14 MST Print View

From my experience, if you want a truly airtight seal (one that you can rely on) you are going to want to use an adhesive as opposed to a tape. I use the Hysol stuff and can get it airtight. Huzefa inquired with me about it so I believe he plans on using (or testing) the same stuff on his sleep pads, but he can chime in to verify.

Shawn Forry
(porkpie73) - F

Locale: High Sierra
Hysol Adhesive on 01/12/2010 11:39:50 MST Print View

Hey Steve, do you have any more info of which hysol product is being used? Just doing a quick search, seems like there is a lot of options out there.

Shawn

Steven Evans
(Steve_Evans) - MLife

Locale: Canada
Re: Hysol Adhesive on 01/12/2010 13:13:11 MST Print View

Read this thread here, everything I know about bonding cuben is in it.

http://www.backpackinglight.com/cgi-bin/backpackinglight/forums/thread_display.html?forum_thread_id=20093

Gary Boyd
(debiant) - F

Locale: Mid-west
Earlier attempts. on 02/10/2010 18:38:25 MST Print View

I think we all agreed that peel strength was the main problem with the cuben air mattress, and with the UL heat sealable nylon that one of the other members is working with, it's practicality in the usage has become minimal. In order to be more durable you would have to use heavier cuben, and even then abrasion resistance is low. That being said I would still love to see this become practical.