Mounting a poster on wood is an alternative to displaying it in a frame or simply tacking it to the wall. There are a few advantages of mounting to wood. The entire picture is shown as opposed to it getting covered up by matt paper. Mounting on wood takes the focus of the viewer directly to the poster rather than the frame. Wood provides a sturdy backing for the poster so it doesn't roll up or distort. Putting a poster on a mounting board requires only a few supplies.
Spray the back of the poster with spray adhesive. Apply liberally. Place the poster on the board in the position you want it to appear to the viewer. Run you hands firmly over the surface of the poster to ensure there are no air bubbles.
Place the wood (poster side up) on top of two to four paint cans so it is lifted off the working surface. Put newspaper below the cans and poster to catch drips.
Paint the surface of the poster and wood with clear wood varnish. Apply two to three coats. Wait for it to dry. This may take 24 to 48 hours depending on the weather conditions.
Sand the edges of the poster with 80-grit sandpaper to remove varnish drips. Lightly sand the surface of the poster to remove any air bubbles.
Repeat Steps 3 and 4.