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#187286 - 10/07/14 03:17 PM Scotchgard For Cheap Raingear?
4evrplan Offline
member

Registered: 01/16/13
Posts: 913
Loc: Nacogdoches, TX, USA
I've never used Scotchgard, but I'm wondering if it would make a wind blocker and wind pants sufficiently water resistant to use as rain gear. This could also double as a light shell over insulating layers when it's not raining. Has anyone ever tried anything like that?

The other idea would be to brush on thinned silicone sealer like people sometimes do with tents. I would think it'd still be cheaper than buying dedicated hiking rain gear.
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#187287 - 10/07/14 03:37 PM Re: Scotchgard For Cheap Raingear? [Re: 4evrplan]
aimless Offline
Moderator

Registered: 02/05/03
Posts: 3292
Loc: Portland, OR
I once tried a spray-on water repellent similar to Scotchguard on a nylon wind breaker and wind pants, thinking the same thing. It worked very poorly and I got soaked. I don't know if I applied it poorly or if it was that the product didn't work, but I never experimented with it again.

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#187290 - 10/07/14 05:51 PM Re: Scotchgard For Cheap Raingear? [Re: aimless]
balzaccom Offline
member

Registered: 04/06/09
Posts: 2232
Loc: Napa, CA
My understanding is that Scotch Guard is sold to make the individual strands of fabric impermeable, so that they won't absorb moisture. But this doesn't make the fabric waterproof...it just makes it easier to clean.
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#187292 - 10/07/14 10:26 PM Re: Scotchgard For Cheap Raingear? [Re: balzaccom]
carbeque Offline
member

Registered: 09/30/14
Posts: 42
Loc: Sacramento, CA
It would seem that Scotch Guard would make the individual fibers hydrophobic, which would keep them from wetting, which would keep the water out by means of its own surface tension.

Here's an interesting how-to: http://www.ehow.com/how_5931315_waterproof-nylon-jacket.html
I wonder how much a good result depends on the heating step...

-Rodney

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#187304 - 10/08/14 03:43 PM Re: Scotchgard For Cheap Raingear? [Re: 4evrplan]
finallyME Offline
member

Registered: 09/24/07
Posts: 2710
Loc: Utah
My initial guess is that if the jacket already has some polyurethane coating on it, then a silicone spray won't stick. If, however, the jacket is just nylon, then a silicone spray will stick. But, I have never had good results from spraying with a silicone spray. I have only had good results from thinning out silicone and then applying it like a paint.
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#187309 - 10/08/14 03:51 PM Re: Scotchgard For Cheap Raingear? [Re: finallyME]
4evrplan Offline
member

Registered: 01/16/13
Posts: 913
Loc: Nacogdoches, TX, USA
Have you used that pain-on method on clothing, or just other outdoor gear?
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#187312 - 10/08/14 04:36 PM Re: Scotchgard For Cheap Raingear? [Re: 4evrplan]
Rick_D Offline
member

Registered: 01/06/02
Posts: 2939
Loc: NorCal
Can't imagine this working. Windbreaker clothing already have DWR coating, which Scotchgard basically is, and even if they cohabited the fabric harmoniously you wouldn't receive double-durable water repellancy. Light moisture beads up and runs off; heavy moisture/windblown rain wets through.

Waterproof means either impermeable fabric or a bonded waterproof layer. Cheap, impermeable raingear is easy to find and doubles as a great portable sauna. Waterproof-breathable fabrics are trickier and come in many types, the most famous being Goretex. Those can get expensive, but there's always sales and second-hand. Somewhere off to the side are ponchos, which can protect you and your pack and generally are pretty cheap. Make a decent tarp in camp, too

When I was in college it was the rage to empty a can of Scotchgard into a pair of Levis and go skiing. What can I say?

Cheers,


Edited by Rick_D (10/08/14 09:32 PM)
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#187320 - 10/09/14 09:26 AM Re: Scotchgard For Cheap Raingear? [Re: 4evrplan]
finallyME Offline
member

Registered: 09/24/07
Posts: 2710
Loc: Utah
Originally Posted By 4evrplan
Have you used that pain-on method on clothing, or just other outdoor gear?


Just tarps


Edited by finallyME (10/09/14 09:27 AM)
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