These are the papers I use to collage my sketchbook pages. I buy them from Artwise the Amazing Paper Shop. You can click on any of these images to get a better look!
I lay them on the sketchbook (in this case, a Stillman & Birn Delta series……nice and robust for this sort of work….pages don’t curl) and work out which pieces I will use. I always tear the papers rather than cut them.
I use Matisse Gel Medium, though other mediums would also be fine. Then I glue them against the pages of one of our local papers, the Inner West Courier, which has glossy paper so the newsprint doesn’t come off. One by one, I paint the medium onto the kozo paper, out past the edges, so any loose fibres will stick down. Then I place them on the sketchbook page and press them down.
I could go right ahead and put watercolour paint on now, but unless I am pressed for time I put waxed paper between the pages and let it dry overnight. In the morning I slosh on some watercolour paint. Sometimes I just use what is on my palette but if I think I am going to be painting sandstone I use some yellow ochre or raw sienna.