Have you seen Breathing Color Silverada?
Looks fantastic. Not sure about its longevity though, even when sprayed.
I bought a roll and must say it is one of my least favorite papers out of maybe 40 or more I've tried. Never have gotten a decent image off the stuff either. Okay, it smells awful too once out of the bag!
Ink bleeds leading to sharpness issues which their own tech mentioned in followup. Never get a dark black either no matter the profile - mine or theirs. If I crank it up for black or color, the ink bleeds out into adjacent lighter colors even more. Very hard surface, and looks more like a buff-colored irregularly varnished canvas. It is thick and can roll up from the sides (oddly?) which leads to bad head strikes, so bad the printer head will knock it sideways and maybe a 5 degree angled shift in the image as it prints too.
I was so disappointed with the blacks I hit it with Krylon UV Varnish. Didn't help much at all and maybe even dulled it a bit. Don't know what they mean by a metallic look either. More like a light cream/yellowish opalescent on heavy stock. Spraying fills in the shallow irregular filled weave too and makes the irregular varnished appearance appear more so.
Wish I had tried the sample of it first before buying the expensive roll, but they were out of samples then too so I bought the roll. Used maybe a third trying to get a decent profile, but bad head strikes and ink runs made me give up on it.
Compared to what I get out of the Premier Art Canvas, which looks more like a heavy bright-white canvas that an artist would use (much thicker weave than most, and more suited to the larger print sizes), it was a bad mistake. The Premier canvas takes their spray a lot better too and punches up the coarser weave appearance as well. Might be my favorite canvas so far and was easy to profile even though it may have OBS's in it (Brightness of 102 I think (?) which makes prints in dark areas appear to be illuminated.).
SG