This Permacolor ColorTrans Optically Clear 54" x 150' Perm/Rem Mounting Film is an economical, 2-mil clear polyester film coated on one side with a Permanent clear acrylic pressure sensitive adhesive and on the other side with a Removable clear acrylic pressure sensitive adhesive. The removable side is wound out for ease of application. A polyester release liner that protects each side permits complete visual inspection of the product, easy liner removal and a distortion-free adhesive surface. This optically clear, two-side coated film was designed for face-mounting and back-mounting transparencies to glass windows, Plexiglas and other clear or transparent substrates for both indoor and outdoor applications. Also, it helps protect mounted images from fading caused by ultra-violet (UV) light exposure. Although designed primarily for mounting photographic transparencies for backlit applications, this Permacolor ColorTrans Optically Clear 54" x 150' Perm/Rem Mounting Film can be used wherever superior clarity and smoothness are required.