Check the listing for details. BDF NSN70 Window Film Transparent NSN 70 (Very Light). Color: Silver, Condition: New. Listed at 48.99 USD. Buy Decorative Film's sputtered films are reflective films effective at rejecting more heat than traditional dyed films. We offer sputtered films comprised of a wide array of metals to match whatever color or shade is required for a project. Because there is no dye in our sputtered films, they will not fade throughout the entirety of their lifetimes. Additionally, our layering technology limits oxidation to ensure that our films will last far longer than expected. The metal in the NSN series is comprised of an alloy of nichrome and silver. By combining the strengths of these metals, this alloy provides the film excellent reflectivity and outstanding overall performance. - Light Reflectivity - Excellent Heat Rejection - 99% UV Rejection