A couple of years ago I was fortunate enough to have someone in the Ntrak club give me a left over section of scenic background from Backdrop Warehouse that was a good match for the what I wanted on the Hot Springs Junction module.
The sky board itself I had already built and painted and posted on in September of 2012.
The background scene was just over 72 inches long and I only needed 48 inches . Also only about 8 of the 11 inches of height would be visible.
In the above photo I show Photoshop lines where I cut the scene. I left it about 1 inch longer as I could trim any excess after it was on the sky board.
Here is a youtube video showing this adhesive product being used in this application.
As I was going to have some extra material, I cut off a small section at one end of the roll and applied it to a painted scrap of plywood as a test to familiarize myself with working with this adhesive.
I am really happy with the way this came out. I'm sure that installing this product to a module sky board that can be laid flat is easier than working with it on a vertical surface so I'm glad I got to try it this way first.