I'd been using Yupo white with watercolors, I love that when wetting again I can continue working.
I wonder if any fixation is needed for the work to last. Like charcoal?
Lets say that the work is framed and hangs in a humid weather, would this affect the work?
many thanks, I love Yupo

Remember that water activates and disturbs watercolors on YUPO, making it easy to recover whites or remove layers of paint, even paint put down months ago. Humidity, to a lesser extent, may have similar results. Allow Yupo to dry completely. If the paint is still tacky, spray it with a matte-clear non-yellowing acrylic finishing spray, such as Lascaux UV Protect, to seal and protect it. Only use a sealant when your work is complete, as rework and touch-ups become difficult to do after sealing.