I have some large pieces of Yupo 24 x 60 inches that are framed and matted. They were dry mounted as I have had some problems with the Yupo in larger sizes rippling when just framed and matted in the usual way. I am noticing that some of the adhesive is letting go and I am having some bubbles appearing. Do you have any suggestions??

Hi Linda, Unfortunately, we cannot offer much help as we're not framers nor do we know what materials were used to mount it originally. We would suggest to go back to the company you used to mount the piece. Wish we could be of more help.