GregG wrote:I have owned three breathable-membrane rain jackets, two were Goretex and the other was Hydronaute, not one of them remained waterproof for any useful period of time. Re-proofing with DWR treatments gave a temporary result, Graingers seemed to be the best stuff to use but even that did not outlast two or three outings. My current jacket is a Mont and it wets out across the shoulders first, this seems to be the weak point of this kind of rain wear because (I think) backpack shoulder straps stretch the membrane and also rub-in dirt and grunge. When walking in rain in all but very cold conditions I now walk without a rain jacket and put on a 100% waterproof PU coated nylon rain jacket when I reach camp. This is more pleasant I find, I would rather be rain soaked than sweat soaked. But then again I must admit that most of my walking tends to be under mild climates these days, no doubt different approach needed elsewhere eg Tassie or Aust Alps.
Joynz wrote:GregG wrote:I have owned three breathable-membrane rain jackets, two were Goretex and the other was Hydronaute, not one of them remained waterproof for any useful period of time. Re-proofing with DWR treatments gave a temporary result, Graingers seemed to be the best stuff to use but even that did not outlast two or three outings. My current jacket is a Mont and it wets out across the shoulders first, this seems to be the weak point of this kind of rain wear because (I think) backpack shoulder straps stretch the membrane and also rub-in dirt and grunge. When walking in rain in all but very cold conditions I now walk without a rain jacket and put on a 100% waterproof PU coated nylon rain jacket when I reach camp. This is more pleasant I find, I would rather be rain soaked than sweat soaked. But then again I must admit that most of my walking tends to be under mild climates these days, no doubt different approach needed elsewhere eg Tassie or Aust Alps.
Recently, I noticed my 2013 Mont was not beading anymore and gave Mont a call. They specifically said not to use a DWR wash on it - but just to wash it (as per the label, with a mild detergent) and then iron it to restore the DWR.
Since the coat wasn’t dirty, I had never washed it. But, it turns out, that washing and ironing is the best thing to restore the DWR of Hydronaut.
It is now working like new (though it’s only being used in downpours around suburban Melbourne - as we stay in lockdown...)
PedroArvy wrote:In serious rain, waterproof/breathable jackets are a con, see https://andrewskurka.com/backpacking-cl ... ain-pants/
sup3rk1w1 wrote:I suspect the OP wasn't getting wet from rain, but from her own perspiration.
Eremophila wrote:sup3rk1w1 wrote:I suspect the OP wasn't getting wet from rain, but from her own perspiration.
So... are you suggesting I perspired into the front pockets?
Actually, I’m curious - on what is your suspicion based?
Dave95 wrote:The membranes used in three-layer rain jackets have very fine pores that let vapour through. However, over time, deposits from perspiration block the pores and the breathability of the jacket is lost. The way to restore the breathability is to wash the rain jacket using appropriate detergent. The detergent normally used to wash clothes is not suitable. It will also leave deposits in the pores of the membrane. Most outdoor gear shops sell detergent suitable for use in washing rain jackets.
Most of the regular walkers in the bushwalking club to which I belong do not know how the three-layer fabric from which rain jackets are made functions. They seldom if ever wash their jackets and if they do they don't use an appropriate detergent. The comment made by an earlier poster to this thread that they had not washed their rain jacket because it wasn't dirty illustrated the problem. The reason for washing a rain jacket isn't to clean the surface of the outer fabric it is to clean the pores of the breathable membrane.
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