In Las Vegas, American Renolit Corp., Swedesboro, N.J., will promote the Renolit Exofol FX brand window film, which replaces its Renolit Fast brand. The Exofol FX film features a base layer of polymethyl methacrylate (PMMA) that now includes Solar Shield Technology. SST utilizes infrared reflective pigments that reduce heat buildup.The two transparent top layers of Exofol FX include a middle layer of PMMA and top layer of polyvinyl fluoride film (PVDF). These layers allow IR rays to pass through while the SST pigments in the base film reflect them. This offers protection to the film, the glue line and the window profile. With its low surface tension, the PVDF protective layer of Exofol FX safeguards against dirt, chemicals and environmental pollutants. It also makes the finish resilient to abuse; even graffiti can be cleaned off easily without any damage to the film surface, according to the exhibitor.