NOVELTY - Polymeric composition comprises at least a polymer containing vinylidene fluoride, at least an acrylic polymer and at least an absorber UV, where the mass ratio of fluorinated polymer is 60-90%, and absorbent UV is 0.5-5% and molecular weight is more than 500 g/mol.    USE - Used as polymeric composition.    ADVANTAGE - The composition has optical properties like transparency in the visible and absorbance in UV radiation, and has good durability and heat strength. The film has good thermal resistance enabling them to support severe climatic conditions (rain, cold, and heat), as well as good flexibility and good breaking strength in order to resist the mechanical requests during their installation on the photovoltaic panel, and has chemical resistance property.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: a monolayer film comprising the polymeric composition, where the film has more than 90% transparency in 400-800 nm, and UV absorbance of at least 280-380 nm; #multi-layer film including at least a layer of composition, where the film transparency is more than 90% in 400-800 nm and UV absorbance of at least 280-380 nm; #double-layered film, where the second layer contains 100 to 0% polyvinylidene fluoride (PVDF) and 0 to 40% polymethyl methacrylate (PMMA); #trilayer film, in which the internal layer consists of the composition and the outer layer contains 100 to 0% PVDF and 0 to 40% PMMA; #manufacturing single-layer film, by extrusion blow-molding at temperature of 220-260 degrees C; #use of single layer film or multilayer/double layer/trilayer film for protecting polymeric substrate, where the substrates is (a) polyester, polycarbonate, polyolefin, polystyrene, copolymers styrene-acrylate, acrylonitrile-styrene copolymers, polysulfone, polyurethane, polymeric acrylic resins, polyvinyl chloride, poly (phenylene ether), polyacetals, resins containing polyamide, resins containing polyimide, resins containing polyamide-imide, (b) the mixture of at least one of polymers, and (c) flexible substrates e.g. technical textiles in: PVC, glass fiber, glass mat, aramid or Kevlar (RTM: Para-aramid synthetic fiber); and #a photovoltaic panel including single layer film or multilayer/double layer/trilayer film for protecting its back surface.