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I spray allot of camp stuff (backpack, tent, tarp, raincoat, shoes, etc) with the CRC HD silicone spray. Cheap, wallmart stocks it, and it works but it is also not permanent.

I have been eyeballing this also. They first time I seen it I didn't buy it as I thought the build height would be excessive. Now I think it coats more like other fabric sprays.....
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