TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The backing sheet (A) further comprises: a crosslinking agent mixed with the fluorocopolymer; at least one mid layer, where the layer comprising an organic solvent soluble and/or water dispersible, crosslinkable amorphous fluoropolymers is applied to the mid layer and; and an EVA layer laminated to the mid layer on the side opposite the outer coating. The backing sheet (A) and (B) further comprises: a layer comprising at least one of polyester, polycarbonate, polyolefin, polyurethane, liquid crystal polymer, aclar, aluminum, of sputtered aluminum oxide polyester, sputtered silicon dioxide polyester, sputtered aluminum oxide polycarbonate, or sputtered silicon dioxide polycarbonate; an ethylene vinyl acetate (EVA) layer; an ionomer layer; a layer of a fluorocopolymer of chlorotrifluoroethylene (CTFE) and at least one alkyl vinyl ether; and at least one of silica, titanium oxide, aluminum oxide, zinc oxide, beryllium oxide, mica, clays, boron nitride, aluminum nitride, titanium nitride, carbon black, or organic pigments. In the backing sheet the layer comprising the crosslinking agent mixed with the fluorocopolymer is applied to the polyester layer without adhesive. The fluorocopolymer layer has a thickness of less than 1 mil or greater than 1 mil. In the photovoltaic module, the backing sheet further comprises: at least one mid layer; an outer coating layer comprising an organic solvent soluble and/or water dispersible, crosslinkable amorphous fluoropolymers applied to the mid layer and; an EVA layer laminated to the mid layer on the side opposite the outer coating. The photovoltaic module further comprises a crosslinking agent mixed with the fluorocopolymer. The mid layer comprises polyester and the EVA layer and polyester layer are coextruded. The outer coating layer is applied to the mid layer without adhesive. The outer coating layer further comprises silica. In the photovoltaic module, the fluorocopolymer layer of the backing sheet has a thickness of 0.5 mils or less. The outer coating layer further comprises hydrophobically modified silica. The copolymer layer further comprises silica, or hydrophobically modified silica. EXAMPLE - Pigment Ti-Pure R-105 (RTM: Titanium dioxide) (76.2 g) was mixed with Lumiflon LF 200 (RTM: Fluoropolymer varnish) as a 60% solution in xylene (200 g) solution using high shear mixer. Then solvent and Desmodur N3300 (RTM: Hexamethylene diisocyanate trimerisate) was added to give a formulation. The liquid formulation was transferred from the pan to the film by applicator roll and metered off by Mayer Rod to give the desired coating weight. The coating was applied directly on a Mylar (RTM: Polyester film) (5 mil). The coating was applied at a coating weight of 10-120 g/m2, preferably 30-45 g/m2. The dry coating consisted of 60-65 wt.% of Lumiflon (RTM: Fluoropolymer varnish) and 35 wt.% of the pigment. The polyester film coated with Lumiflon-based formulation was laminated with EVA (vinyl acetate content 4%) using polyester-urethane laminating adhesive. The laminate was then vacuum laminated with an EVA encapsulant and module, to give the Lumiflon-based protective backing sheet.