NOVELTY - Multilayer film comprises a layer of polyvinylidene fluoride (PVDF), and a pressure sensitive adhesive layer. The PVDF layer has a structure of A/B/C type including: a first layer of composition A comprising a homopolymer or copolymer of vinylidene fluoride and a comonomer copolymerizable with vinylidene fluoride; a second layer of composition B comprising a homopolymer or copolymer of vinylidene fluoride, a homopolymer or copolymer of methyl methacrylate and at least one inorganic filler; and a third layer of composition C.    USE - The multilayer film is useful for protecting a substrate of natural polymeric, metallic, thermoplastic or thermosetting composite (claimed).    ADVANTAGE - The multilayer film: has good weather resistance and thermomechanical properties such as breaking strength and flexibility; and is capable of protecting the substrate without corona treatment or heat treatment.    DETAILED DESCRIPTION - Multilayer film comprises a layer of polyvinylidene fluoride (PVDF), and a pressure sensitive adhesive layer. The PVDF layer has a structure of A/B/C type including: a first layer of composition A comprising 100 wt.% of a homopolymer or copolymer of vinylidene fluoride and a comonomer copolymerizable with vinylidene fluoride; a second layer of composition B comprising 30-75 wt.% of a homopolymer or copolymer of vinylidene fluoride, 5-45 wt.% of a homopolymer or copolymer of methyl methacrylate and 10-30 wt.% of at least one inorganic filler; and a third layer of composition C comprising 100 wt.% of a homopolymer or copolymer of vinylidene fluoride and a comonomer copolymerizable with vinylidene fluoride. INDEPENDENT CLAIMS are included for:    (1) a rear protection for solar panel comprising a multilayer structure including as outer layer, the multilayer film, and a polymer substrate; and    (2) manufacturing the multilayer film, comprising producing the PVDF layer by coextrusion, and applying the pressure sensitive adhesive layer on the PVDF film by coating.