The closest I have come to that is Harman Gloss Baryta, but it fails on both criteria: it has OBA content (even with the Warmtone) and there is some, although minor, surface texture.
What inks and what success rate are you having with Arches Hot Pressed? I only ask because some fine art papers work well with my inkset, and others, especially Bristol papers don’t seem to work at all.
Have you looked at Ersnt Dinkla’s Spectrum Viz? It is a great starting point for this sort of exercise.
Brian A
Arches Hot Press seems to work very well with both Piezography and MIS Eboni, with a Dmax of 1.58-1.6 (about the same as many matte papers). By attaching a strip heater to the printer's platen, to heat the platen and media to 50 degrees Celcius (like a solvent printer) I think this could be pushed up a fair bit, to 1.7 or so, since the faster drying means I'd be able to increase the ink limit without increasing the dot gain or ink absorption.
Haven't tried it with colour yet, but the American Inkjet Systems Ultramax inks look promising (I've got some on the way). Muddy colours (due to dot gain and absorption from overinking and slow drying) and low gamut (due to restricting the ink limit, and thus the pigment deposited, to counteract overinking) are the usual problems with Arches. But Ultramax inks have a higher pigment load than Epson/Canon/HP inks (hence their wider gamut), depositing more pigment for the same amount of ink (i.e. you get more colour out of the same ink limit). I'm hoping that, by using more concentrated inks and a higher temperature to hasten drying, I can push the gamut to the same level as that of matte paper.
After all, Iris prints are made on plain paper and look perfectly fine.