I've seen articles on mounting linen on Gatorboard panels, but does anyone paint directly on the Gatorboard in oils? Would that be acceptable to the fine art world?
If so, How do you prepare it? I assume some sort of sealer and then gesso or primer?
I'm preparing for an upcoming plein air competition by doing paintings on the size panels I will be using to try to get fast enough to complete enough paintings to turn in for judging. We can take six "Library" paintings from our studio down to offer for sale and "just in case" some of my practice paintings turn out good enough to offer for sale, I want them to be on a decent panel.