Posca Paint Markers
I know this isn't a color theory question, but this seems to be the most technical part of the forum.
I've tried a few different paint markers, and by far, the Posca paint marker has the best tip and is the most convenient and economical.
However, I assume they are not lightfast, as they are designed for posters. There's nothing clearly stated on their web site about lightfastness, either. (or pigments, etc.)
If I wanted to use them on top of acrylics on paper, is there a way that I could prevent them from fading? I'm assuming just isolation coat and varnish?
High flow acrylic paint is great. . .except, there is no good marker for them, and they take a long time to dry. (hours vs. minutes)