Transparent self-adhesive vinyl, allows light to pass through it without diffusing it, and objects behind the material can be clearly seen. Optically Clear media has a clear, pressure-sensitive adhesive, is durable, and is resistant to chemicals, humidity, and temperature changes. It allows for full-colour graphics, and the un-printed sections remain perfectly clear. This is often used for window graphics, decals, or graphics that need to be applied directly to a glass surface.