Ok, Michael and Paula are in Europe, or I would ask them.
I just got back into darkroom work after many decades.
I mounted several 8x10 AZO prints on 4 ply archival board with seal drymount tissue using the
Prints were treated with fixer removal (kodak) agent, washed for an hour, screen dryed-next day
re-wetted in a tray, squeeged and dryed in the mounting press between two sheets of mount board.
Next day, tacked to 4 ply mount board (archival) with the mounting tissue, and mounted in the press for 4 minutes
at 200 degrees. Removed from press, let press cool to 150F and put the prints back in the
press between two mount board sheets and left overnight.
today, they want to cup, in the long dimension-they are on 11x14 board.
Is the cupping normal? I do not remember this happening when I was doing the same thing
back in the 1950's, although I used double weight paper in those days.
Help is greatly appreciated.