The Sunbrella material has a waterproofing coat, so be sure and wash that off before you start using it, including the indoor upholstery stuff.
In art supplies stores it is "universally primed," meaning acylic. I tested out the Sunbrella sailcloth a while back, and found it to be somewhat difficult to stretch than fabric, and epoxy seems to be the best thing to use for mounting it.
Threaded Mode
