Gene51 wrote:
Andy, in the old days we did dry mount and I still do. But the tack iron was to secure the print to the backer board, and it was done just in the center. If you did the corners there was a good chance there would be buckling. Today, there are dry mount tissues that are reversible, and there are tissues with a barrier that makes them totally archival.
But my preferred approach is conservation mounting, using rice starch glue and water-activated linen tape.
That’s what I do these days, too.
I was taught to tack the top two corners first. Always wondered why.