Hi guys. My prints are large format, from LF originals, so this isn't totally off-topic...
I'm doing lots of testing of various print-coating products to try to come up with an elegant solution for coating Ultrachrome prints made on Epson Premium Semimatte paper (which is an RC paper). The idea is to display the prints without glass, and to do that these papers require some kind of coating that will seal them from atmospheric pollutants. The spray-on coatings may work, but I'm hoping to find something thicker and more substantial than the spray-ons.
So far the highest-quality product I have found is the Lyson slow-dry Printguard, which is a brush-on lacquer product. I am finding it difficult to brush the stuff on these prints without leaving any bubbles, brush marks, etc. Has anyone else had satisfactory results on RC papers? Or maybe there's someone out there with experience generally applying lacquers to any surface? Any help would be great, especially in the area of whether to thin, how much to thin, and any other tips, tricks, etc.