I am attempting to convert a cheap, light ~40 degree sleeping bag into a winter underquilt, to use in concert with my 0 degree mummy sleeping bag. Would it be a good idea to seal the outside somehow, making it wind proof?
If so, what light/thin spray-on sealants are out there? I found this on Amazon, would it be the right stuff for sealing a sleeping bag?
http://www.amazon.com/McNett-36221-R...6294044&sr=8-5
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