I appreciate the feedback and ideas on how to repair an MTH train box that has come undone at the seem. I decided to use a Elmer's white glue which I had on hand. I insert the styrofoam engine case inside the box to give the box support (a post recommended this). I was concerned about the glue seeping out from the seem being repaired and the glue bonding the seem as well as the styrofoam to the box. So, I decided to place aluminum foil along the edge of the styrofoam to protect the it. I placed the aluminum foil under the styrofoam lid to hold it in place as I inserted it into the box.
I placed the train box on a wooden patio table, added a board on top of the box and used three claps to apply enough pressure for the glue to begin seeping out of the exterior of the box seem which I wiped with a wet paper towel. After the glue dried, I had a difficulty removing the styrofoam insert because the glue had attached to the aluminum foil and the foil was held to the stryofoam because I had folded it under the lid which I would recommend NOT doing. I had to use a long bread knife to carefully loosen the aluminum foil from the stryofoam. But, the end result turned out great.
Tom
