Painting on the backside of vintage wallpaper recently... This particular one has an adhesive or sizing of some kind which cause the surface of the paper to have a slight texture when its wet with paint. It is a bit gummy but dries leaving a soft pebbled affect... its pretty interesting painting on this stuff. The colors are softer, more subdued as well. Not sure if I like this one or not, but its kept me occupied for the last few hours so its working :)