tyvek

peter dixon 2

18/06/2012 at 13:55

thinking of buying a tyvek ground sheet from bob at backpacking lite any one know how waterproof they are? and i want to make it bathtub style has any one tried to glue tyvek to make the walls/corners ?? any thoughts just jump in ...want it for my trailstar

Zuma

19/06/2012 at 10:51

Hmm tyvek can be pretty waterproof (depending on the type) but it doesn't stop vapour. So using it as agroundcloth to minimize condensation it really doens't work that way.

terry cleverley

19/06/2012 at 11:32

depends on which side is placed towards the ground,as its main use is as a replacement for roofing felt on houses .

the outer side repels moisture but the inner face lets it through to prevent condensation similar to goretex.

geekinthesticks

19/06/2012 at 15:45

I have got some from BPL partly to act as a footprint and partly to cover the grass in the porch area of my tent. Haven't used it in anger yet. It feels very stiff, although it is supposed to get softer as you use it. The BPL sheet is edged all the way round with black tape and tape loops in the corner. Don't know if you can glue it, but you could definitely sew it, as that's how the tape is attached.

Edited: 19/06/2012 at 15:46

William Chilton

19/06/2012 at 15:57

According to http://www.polymernotes.org/resources/tyvekdupont.htm, "Natural product adhesives based on dextrin, casein or animal byproducts can be used to adhere Tyvek® to itself and a variety of paper materials. Water based synthetic lattices such as the ethylene/vinyl acetate adhesives form fibre tearing bonds with Tyvek®. Hot melt polyamide adhesives are available which form good bonds to Tyvek® with a variety of materials. Acrylic pressure sensitive adhesives are commonly used with a release liner."

William Chilton

19/06/2012 at 16:05

And there is more detailed information on the Dupont website. Personally, I think taping is probably simpler, as you wouldn't have to wait for the glue to dry/cure.

Roos Eisma 2

19/06/2012 at 16:30

We have Tyvek body suits at work. They're pretty sweaty!

peter dixon 2

19/06/2012 at 19:33

hi thanks for repleys >>>>>>>>>>>>>zuma i just want to put my mat on it and it keep the water out from the ground....it will do that wont it ?

huskyman

19/06/2012 at 19:55

I've a Tyvek groundsheet/footprint, the only time I've used it, so far, was on soggy ground. Sitting in the porch on just the Tyvek, spread out fully, I didn't find any water came through.