One of the materials suggested by Screen Goo to use as a background material is "Sintra". I am in the Sign business and this is one of the materials we often use. It is a flat, no-gloss plastic (PVC I think) that comes in 4x8 sheets, 3mm or 6 mm thick (1/8" or 1/4"). I am wondering what kind of picture one would get if this product was used as-is without any kind of paint.