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DWR treatment question

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PostedJan 5, 2015 at 10:34 am

Question about the timing for restoring DWR:

I've been in the habit of applying DWR treatment to critical backpacking clothing (rainjacket, rainpants, windshirt, shoes) once per year.

Usually, I don't do it till May or June when I'm imminently going out on my first backpacking trip. At that time (first trip of the year), I'm usually really harried and it is an extra hassle.

So my question is, if I apply the DWR treatment now (January) instead of in May, is the DWR going to wear off during that time? (Assuming little/no use of the garment in the interim.) Should I wait till May so that it's "fresher"?

– Elizabeth

PostedJan 5, 2015 at 11:33 am

DWR wears off due to abrasion (including washing) and exposure to dirt and oils. Time isn't a significant factor over a year. Just be sure to wash in something without a wetting agent like most laundry detergents have.

Roger Caffin BPL Member
PostedJan 5, 2015 at 1:25 pm

Yep, do it in advance – exactly what Andy wrote.

But I will add some emphasis to the bit about washing the gear first, with a zero-residue detergent such as Atsko Sport Wash. Unless the gear is cleaned first, you may be wasting your time.

Cheers

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