Cuben Fiber Down Air Pad
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Huzefa Siamwala
(huzefa) - M
Cuben Fiber Down Air Pad on 08/26/2009 02:17:29 MDT Print View

Prototype




Dimensions:63" x 20.5" x 3.5"
Weight: 19.3oz
Materials: 1.5oz Cuben Fiber, 8+oz of 800+ fill down
Adhesive: 1" 3M 9485 and 1" 3M 9088
Inflation: High flow valve
_________

I am really excited about this! I have been thinking about this for months and now I finally made it. The prototype is not as light as I wanted but it works alright. I made some mistakes but learned a lot from them.

I am currently working on a second prototyple to make this lighter and stronger. It will have 1.5oz cuben for shell and 0.6oz cuben for baffle for best of durability and light weight. It will also be wider at 22" because the long side seam will be in overlap.I will post testing result in 2-3week. The pad will now come with lifetime warranty. And revised pricing and ordering details will be available soon.

Thanks for you patience and support.


For any comments or questions reply below or you can contact me at huzefasid at gmail dot com



Best Regards,
Huzefa

_________
Other Products

I will be selling a cuben fiber pump/stuff sack with the pad but I am not taking any pre-orders right now.

I also plan on manufacturing cuben fiber internal frame backpacks after I finish with the first batch of sleeping pads. One interesting bit is that the pack can be used as a giant stuffsack for super-fast pad inflation. I will posting more details soon.

Edited by huzefa on 09/05/2009 23:17:51 MDT.

Derek Cox
(derekcox) - F

Locale: Southeast
Re: Cuben Fiber Down Air Pad on 08/26/2009 10:56:04 MDT Print View

Looks like the idea shows promise... what do you estimate the final weight and r-value would be including the pump? are you going to start a website up like many others have done or just work exclusively through forums? i like the pack idea too. both sound cool. if we could get some more pictures and information when the actual manufactured product is ready that'd be cool.

Dan Durston
(dandydan) - M

Locale: Cascadia
Product on 08/26/2009 19:09:19 MDT Print View

Neat product....it looks extremely warm. Any chance of getting one more aimed at 3 season use? Something about 1/2 as thick with 1/2 the down could be an extremely compelling product. It should be well under the weight and price of a NeoAir as long as the pump isn't too heavy.

I wonder if you could make these things self inflatable so no pump is needed? The cuben is pretty darn light, so if you allowed the down time to loft up and then just sealed the pad it might be sufficiently soft. It would never be rock hard, but as long as you aren't bottoming out it should be good enough.

Huzefa Siamwala
(huzefa) - M
Re: Re: Cuben Fiber Down Air Pad on 08/28/2009 10:07:45 MDT Print View

Hey guys.

>what do you estimate the final weight and r-value would be including the pump?

Final weight will depend on the size of the pad. My estimate is that a 750 cubic inch stuff sack/pump will weight .5oz and 65" pad will weight about 12-13oz. Based on similar pads I expect R value for 3.5 inch pad to be about 9.

>are you going to start a website up like many others have done or just work exclusively through forums
I will be starting a website soon. I will post it when it is ready.

>Any chance of getting one more aimed at 3 season use? Something about 1/2 as thick with 1/2 the down could be an extremely compelling product. It should be well under the weight and price of a NeoAir as long as the pump isn't too heavy.

Good idea. What width would you like? I think either 2" or 2.5" should be good. I can make a custom 3 seoson pad. You can expect significant reduction in packing size but not in weight. Price will remain the same for the first batch.

The Cuben fiber fabric itself cost $20+/yd and bonding is pretty labour intensive process compared to automated welding technology used in neo air and other pads. This is a very special pricing exclusively for BPL members. Expect to pay upto 50% more from the next batch.

>I wonder if you could make these things self inflatable so no pump is needed? The cuben is pretty darn light, so if you allowed the down time to loft up and then just sealed the pad it might be sufficiently soft. It would never be rock hard, but as long as you aren't bottoming out it should be good enough.

I have modified this prototype to try some ideas. What I found was that it takes a lot of time self inflate. When you are tired after a tough day, last thing you want is to do is stand while waiting for the pad to self inflate. I expect a 750cu in stuff sack/pump to weight about 0.5oz and you can have inflated pad in minutes.

Keep questions/comments coming.

Edited by huzefa on 08/28/2009 10:31:38 MDT.

B. F.
(thrush) - F
Cuben pump and shipping on 08/29/2009 05:50:10 MDT Print View

I think you will have to use some kind of pump because otherwise the down will get wet over time, and through the compression after packing they will clump. Does a cuben pack sack works well to pump it up and can I use every cuben pack sack for this?

How long did you test your prototype, on how many trips?


Do you ship to europe?

Edited by thrush on 08/29/2009 05:50:59 MDT.

Steven Evans
(Steve_Evans) - MLife

Locale: Canada
Re: Cuben Fiber Down Air Pad on 08/29/2009 12:34:10 MDT Print View

Nice work Huzefa, that thing looks awesome...I'm interested but like BF (above) would need to know some testing results first. I know it wouldn't be in your best interest as you are selling them, but I would have loved to see a MYOG article on this.

Aaron Sorensen
(awsorensen) - MLife

Locale: South of Forester Pass
Re: Cuben Fiber Down Air Pad on 08/29/2009 20:20:25 MDT Print View

Okay Huzefa,

It's time to get my nerd calculator out as I will take an order from you.

First of all 800 fill down is really 800+ fill down and usually averages around 840 fill.

You're square inch tube for a 63" length is 605 square inches so you are over-filling the tubes.
To fill the tubes as prescribed, it would only take .75 ounces for each tube.

If you are using only 7 tubes, then your 8 ounces of down will actually have 1.15 ounces in each tube.

What I will order from you, if you are willing is an 8 tube width, (23.5") and 40" length with .6 ounces of down in each tube.

This will come out to 13 ounces.
Even less with the lighter tape!!!
Also what are the differences in weight between the 2 tapes?

So my question to you is if I am saving you almost 2 ounces of down, will that make up for the extra tube?
So basically put, can I still get it at the 2.5 X 40" = $100.

If so, then sign me up for an order.
That's $100 for a (what will be) a sub 13 ounce pad with some serious R-Factor!

Edited by awsorensen on 08/29/2009 20:26:10 MDT.

Huzefa Siamwala
(huzefa) - M
Cuben Fiber Down Air Pad on 09/01/2009 12:48:00 MDT Print View

>can I use every cuben pack sack for this?

No. Not atleast without some modification. It will be similar to BA Pumphouse but lighter. Dry bag style closer will add weight. I will decide later whether to offer just a light pump or multi use dry bag/pump depending on the demand. So let me know what you guys want.

>Testing
I havent had the opportunity to test it outside but I have been testing it at home. Here is what I found:

>1.5oz cuben fiber is very durable and air tight.
>The bonding stays good when pad is under inflated.
>Full inflation and dynamic load caused some peeling ie. adhesive failure. The material in intact.

I am going to make a second prototype with a different adhesive and will do further testing on it. I have decided to stick with 1.5oz cuben for shell and use 0.6oz cuben for baffle for best of durability and light weight. It will also be wider at 22" because the long side seam will be in overlap. I should have a prototype ready in 2-3 weeks.

May be I should have finished all the further prototyping/ testing and then made this announced. But trust me, I dont intend to sell have non reliable stuff. Unless I am completely satisfied with the second prototype I wont be accepting any preorders.

>Do you ship to europe?
I will ship worldwide.

>MYOG article
I will think about it.

____________________

Hey Aaron, cuben fiber comes in 50" width, as you surely know. How do you expect a 23.5" pad? The final version will be about 22" wide (standard). Let me know if that will work for you.

Henry Blake
(Dragon) - F

Locale: Minnesota
I'm Interested on 09/10/2009 21:17:06 MDT Print View

I presume you need to get orders lined up. I think I could take one.

Jim Sweeney
(swimjay) - MLife

Locale: Northern California
Moi aussie on 09/10/2009 22:16:48 MDT Print View

Please let me know as you get closer to a final version. I'd also be interested in one.

Mary D
(hikinggranny) - MLife

Locale: Gateway to Columbia River Gorge
Cuben Fiber Down Air Pad on 09/11/2009 02:39:17 MDT Print View

This pad sounds really interesting. Being short, and not a winter camper, I'd prefer a 48 inch long pad, 2.5" to 3.0" thick, with a bit less down. I suspect that a pad of these dimensions would be fairly close to the weight of a Thermarest NeoAir and a lot warmer.

I have a Big Agnes Pumphouse--it works great as a pad pump but is a complete failure as a dry bag (water leaks through the fabric pores) or as an inflatable pillow (goes flat in less than an hour). A similar item made of Cuben would solve this problem as well as being lighter, so it should work just fine as a dry bag or an inflatable pillow--multiple use!

EDIT: Can you make something like the BA Pumphouse without infringing on their patent?

Edited by hikinggranny on 09/11/2009 14:22:11 MDT.

Huzefa Siamwala
(huzefa) - M
Re: Moi aussie on 09/11/2009 03:04:22 MDT Print View

I am getting many PM and email inquiries. I really appreciate the interest and support. I will let you know when the 2nd prototype is ready for further testing. Thanks for your patience.

I may need about 20-25 preorders to buy material in bulk and offer reasonable pricing.

Gary Boyd
(debiant) - F

Locale: Mid-west
Huzefa on 09/11/2009 11:05:55 MDT Print View

Wow, I'm removing my initial post, because I apparently can't read very well.. Thanks for the information Huzefa.

That being said, I used the same adhesive for a small prototype and also found that loading caused peel, I'd be interested to know what you allowed for curing time before testing. One poster stated that bond strength should be at it's maximum after a week. Also whether you've finally solved this problem and maybe how.

Edited by debiant on 09/11/2009 11:24:21 MDT.

Huzefa Siamwala
(huzefa) - M
Re: Huzefa on 09/11/2009 17:39:29 MDT Print View

Gary, I have sent you a PM.

Huzefa Siamwala
(huzefa) - M
update: color choice and wider width on 09/18/2009 19:25:44 MDT Print View

Hi all, I got an email from CubicTech saying that standard width for future production run will be in 54". That means a wider pad!

The minimum production run for a colored product is 99m. I looking for feedback on the color for sleeping pads and backpacks.

What color would you like to see?



Above image is from the Cubic Tech website. I think they can do any color. Keep in mind that only the fiber is colored, the film is clear. This heavier 1.5oz weight is not as much see through as the lighter weight but colored product will not make a significant difference here. Also see pics in the original post.

Do you prefer natural, earth tones or bright color for higher visibility. Bright color can be cheery. Or I can go with standard white and not worry about the large min. order.

May be post love/hate or color preference list to guide me.

Thanks!

Edited by huzefa on 09/18/2009 19:34:18 MDT.

Jim Sweeney
(swimjay) - MLife

Locale: Northern California
color on 09/18/2009 19:40:32 MDT Print View

I personally like the white, and the notion that white would not require you to tie up capital in a large order is attractive.

. .
(biointegra) - MLife

Locale: Puget Sound
Re: update: color choice and wider width on 09/21/2009 09:33:04 MDT Print View

I'd be interested in a pad pre-order. Keep me posted. My vote for color would definitely be a warm Orange for a warm pad.

Thanks for undertaking this endeavor!

John Vance
(Servingko) - F

Locale: Intermountain West
Keep me updated on 09/21/2009 09:51:15 MDT Print View

My Exped downmat's are getting nervous. Please keep me updated on the process.

hunter nelson
(hunt4car) - F
cool on 09/21/2009 22:07:24 MDT Print View

i would buy one after some good testing
for sure

Huzefa Siamwala
(huzefa) - M
Re: Re: update: color choice and wider width on 09/24/2009 07:35:01 MDT Print View

orange sounds good. I need more feedback on color choice. I would need like 50+ preorder to pay for custom color cuben production run. Other wise for first production I will go with white and in future I can offer color pads.

I got some few ml of sample adhesive from loctite and initial testing shows exceptional peel strength resulting in substrate failure. I am still waiting for 100ml order to make the second prototype. It could take another week.