Are Pigma® ink products safe for hand tinting of photographs?
Regardless what product you use for hand tinting, we recommend you try it on some similar photos that are not one of a kind to see how you like the results, colors, effect, etc. You might even want to wait a few weeks to check for surface degradation. If everything works out to your liking, you could then feel more confident about using that product on non-replaceable photos. Since there are so many types of photographic paper, Sakura cannot guarantee that Pigma inks will produce the hand tinting results you desire. Many photographers have told us they get the best results using non-RC (resin coated) papers.