Here's something new... Recently I've developed a new technique in the Platform Mounting family of attachments for flat paper items in picture frames.
"Soft Platform Mounting" is similar to typical Platform Mounting, but instead of hinging the platform to its opening, trim a piece of white polyester felt to the platform size and spot-glue it to the inside of the backing board. The felt is about the same thickness as a 4-ply matboard, and its soft texture helps to support the whole surface area of the paper item in the mount.
As in typical Platform Mounting, the backing board is "booked" to the window mat/platform mat assembly, so the soft platform nests in the platform recess when the mount is closed.
"Soft Platform Mounting" is similar to typical Platform Mounting, but instead of hinging the platform to its opening, trim a piece of white polyester felt to the platform size and spot-glue it to the inside of the backing board. The felt is about the same thickness as a 4-ply matboard, and its soft texture helps to support the whole surface area of the paper item in the mount.
As in typical Platform Mounting, the backing board is "booked" to the window mat/platform mat assembly, so the soft platform nests in the platform recess when the mount is closed.