Coating tube covers

[Riversedge]

I have a TU Bighorn, and love it for the most part. I have one problem though. Because I float shallow rivers mainly, the bottom of the cover is starting to look a little ragged and frayed. A number of toons come with PVC coated covers for the bladders for abrasion resistance, and I am wondering if anybody here has ever coated the cover of a floattube for the same reason. Either that or would have a recommendation of what might work. One thing that has been suggested is to use Aquaseal to add an additional layer of nylon to the bottom, butthat seems fairly complicated to me. As it stands right now, I am thinking of something like Plasti-kote, but before I take that step I'd like to hear everybody elses opinion. All help greatly appreciated.
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