Hey everyone, I'm new here so this may be the wrong category - please let me know if I should post this somewhere else. I am an artist and I print my own giclees with the Canon Pixma Pro 10. I'm trying to figure out where I can buy a matte/gloss coating (must be archival quality) that I can spray/apply directly onto uncoated paper which makes it so that ink stays on the surface, thus resulting in a more vibrant print. Coated papers specifically made for art prints or photography are quite pricey, so I would like to coat my own paper. I have read that some paper manufacturers use a type of clay coating (kaolin clay) or some sort of calcium coating, but I can't find them for sale anywhere since it's such a specialized material. Do you know where I could buy some, or would I be able to buy the dry kaolin clay powder and make my own solution using water or some other mixture? Otherwise, would I be able to spray an archival matte spray varnish directly onto the paper, which is usually intended to be sprayed on top of things? I am assuming that that would work but I want to hear your input first. Maybe there's another unusual product that I could use that wouldn't degrade the underlying paper? Thanks in advance!