Lumina 2520 Series Premium Cast Translucent Film With Synthetic Liner - This high performance cast translucent film is engineered with excellent weathering and aging characteristics. This film is best used in backlit applications that require excellent, even color illumination with flexibility for sign faces and awnings. This film can also be used on glass, acrylic and polycarbonate sign faces or window substrates. Lumina 2520 Series features a synthetic liner that offers greater dimensional stability and easier application when using a wet application technique.