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What material for bathtub tent floor
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MICHAEL FREEMAN
(m_freeman) - F
What material for bathtub tent floor on 02/01/2010 23:05:54 MST Print View

I am wanting to make my own ultralight waterproof tent. I like tents with a bathtub floor, what material should I use for the floor? and what is the best thread? total newbie to this but looks like fun

Bob Gross
(--B.G.--) - F

Locale: Silicon Valley
bathtub floor material on 02/01/2010 23:49:20 MST Print View

The few possibilities are Tyvek, Nylon, or polyethylene plastic.

Tyvek is fairly waterproof, fairly cheap, and wears OK. Nylon has lots of varieties, but if you have a fully-coated nylon like Sil-nylon, that works. It costs more, but it wears better, and probably weighs slightly more. Plastic comes in all sorts of thicknesses. It is cheap, extremely waterproof, but is easily punctured. Depending on the thickness, it may or may not be the lightest.

The nylon fabrics are probably best if you are going to turn up the edges and corners and sew it. Tyvek can be sewn, but plastic will tear.

For one heavy-duty purpose, I made my bathtub floor out of coated nylon. It's heavy. For a quick/disposable purpose, I made one out of 0.7 mil plastic, but I expect it to last no more than a week or so. Previously, I had made one out of 1 mil plastic, and it lasted much better.

--B.G.--

Dan Durston
(dandydan) - M

Locale: Cascadia
Floor on 02/02/2010 00:07:20 MST Print View

I would use 1.1oz silnylon which actually weighs about 1.4oz/yrd.

jeremy duncan
(jeremyduncan) - F

Locale: Midwest
BEST MATERIAL FOR BATHTUB TENT FLOOR on 02/02/2010 00:48:50 MST Print View

here a link to some tips for sewing silnylon (I hear it can be pretty difficult to work with)

http://www.specialtyoutdoors.com/tips/silnylon.asp

Bob Gross
(--B.G.--) - F

Locale: Silicon Valley
sewing waterproof stuff on 02/02/2010 00:51:26 MST Print View

About thirty years ago, I sewed my first bivy sack. It was coated nylon on the bottom, and Goretex on top. Worked good, except that it was about three inches too short. So, I made another one, about seven feet long, two people wide, and with netting at the top. Worked good, except that it was too heavy with those materials of that era. I still use it on occasion. Now, with the lightest sil-nylons, it ought to be a breeze.

--B.G.--

Bob Gross
(--B.G.--) - F

Locale: Silicon Valley
Specialty Outdoors on 02/02/2010 00:55:00 MST Print View

Penny is no fool at this stuff.

She helped me once about six years ago.

One trick that I found about sil-nylon. I've tried cutting it with different tools, and I found the best to be a new single-edge razor blade.

--B.G.--

Andrew Wilson
(andreww) - MLife

Locale: Vosges
Bathtub floors, fabrics on 02/02/2010 12:30:54 MST Print View

Unless you have a very taught system, and very tall "walls", a bathtub floor is nul. I discovered this when I made a net-tent with a "bathtub floor" (only 2" "walls") which when pitched looks just like a flat sheet, except at the corners.

As for material, sil-nylon is ubiquitous and functional; it also will soak up a tiny bit of water (and more, if you are in a puddle), where you're lying down, as it not really waterproof like other fabrics, including Cuben (and urethane coated nylon), are. Whatever you use, have a bit of an overhang, and don't camp on dished ground.

Fred eric
(Fre49) - MLife

Locale: France, vallée de la Loire
1.1 oz silnylon on 02/02/2010 12:38:05 MST Print View

is what i used for this myog bug bivy floor
the silnylon goes up 5cm/2 inches i added a cord + lineloc to tighten the pitch.

worked well for me, even camping in puddles of water in Scotland when i didnt find any dry ground during a very very rainy week in may last year

bug bivy

its one year old now and used for about 40 nights and still in very good shape