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Aug 2014
10:43pm, 12 Aug 2014
3,435 posts
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CStar
Right Fetchland. Advice please.
I've got a lovely Gore Bikewear jacket that I've had for a couple of years and I love, but it doesn't appear to be as waterproof as it once was. It has been very gently washed in a small amount of detergent to keep it clean every so often. Question is, do I need to reproof it with something? I always thought that the clever thing with Goretex was in its inherent design/fabric construction rather than any applied repellent.
Am i right or do I need to do something before I subject it to the best Wales can throw at it this weekend?
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Aug 2014
10:49pm, 12 Aug 2014
11,599 posts
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GimmeMedals
Is rain forecast on Saturday in Welsh Wales? 
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Aug 2014
10:52pm, 12 Aug 2014
3,438 posts
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CStar
It's Wales  (no idea Btw!)
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Aug 2014
10:53pm, 12 Aug 2014
11,600 posts
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GimmeMedals
Fair point. I'll pack my waterproofs.
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Aug 2014
10:58pm, 12 Aug 2014
1,892 posts
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Squares
You can buy stuff you wash in it works well, needs to be heat activated, so I found my self blow-drying my Rohan Mac before a trip to Northern Ireland this spring.
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Jun 2019
8:27pm, 14 Jun 2019
43,782 posts
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runnerbean
Millers do stuff
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Jun 2019
8:47pm, 14 Jun 2019
1,862 posts
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12barDavid
CStar, have a look at Nikwax.
I have used Nikwax a few times over the years & it does what it says on the tin. I have used it on my cycling jacket, running jacket & walking jackets. I have always purchased the product that goes in the washing machine.
All the info is on their website.
Hope this helps.
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Jun 2019
8:47pm, 14 Jun 2019
12,887 posts
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Homer
Grangers of Nixwax wash-in world well. You stick it in the washing machine with your stuff.
It is not really re-proofing the gore-tex though. You're right that the material is inherently waterproof. These treatments refresh the DWR (durable water repellent) coating on the outside that makes the rain bead on the surface and run off. Without the DWR, the rain starts to soak into the outer layer of the garment, but that is ok as the waterproof layer is the middle layer of the garment. (they often have 3 layers, a shiny outer, waterproof layer then a liner).
So, the DWR makes it more pleasant as the outer layer soaks up less water but doesn't actually change the waterproofness.
So.. once you get a hole in the middle layer the reproofing does nothing.
I wash my stuff in the Nikwax treatment about once a year
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Jun 2019
8:49pm, 14 Jun 2019
12,888 posts
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Homer
x-post 12 bar Same choice
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Jun 2019
8:49pm, 14 Jun 2019
15,460 posts
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northernslowcoach
^ what he said
Wash with Nikwax and tumble dry
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