TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Components: The backsheet substrate is a primed or unprimed substrate. The primed substrate is primed by corona treated, or by coating with an adhesive compound. The back sheet is a multilayer structure, having the fluoropolymer composition in the outermost layer, and further comprising at least one barrier layer selected from ethylene vinyl acetate, polyethylene terephthalate, polypropylene terephthalate, aluminum or reactive polyethylenes. The fluoropolymer composition is applied as an aqueous or solvent dispersion coating. The backsheet substrate is polyethylene terephthalate or polybutylene terephthalate substrate. The backsheet substrate further comprises a functional polyolefin.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The fluoropolymer composition (C1) comprises a polyvinylidene fluoride (PVDF) homopolymer or its copolymer. The functionalized fluoropolymer comprises 5-100 wt.% of a maleic anhydride graft copolymer. The fluoropolymer composition further comprises a non-functionalized acrylic compound. The PVDF composition is selected from a polyvinylidene fluoride homopolymer, polyvinylidene fluoride copolymer, a blend of PVDF polymer with a compatible polymer, where at least 10 wt.% of the blend is PVDF, and an acrylic modified fluoropolymer with a minimum PVDF content of 10%. The backsheet comprises a support substrate coated on the side exposed to the environment, or both sides with a dispersion fluoropolymer composition comprising a mixture of a fluoropolymer and a non-functionalized acrylic. The PVDF is non-functionalized. The dispersion fluoropolymer composition does not contain crosslinking. The fluoropolymer and acrylic mixture is in the form of an interpenetrating polymer network. The fluoropolymer composition further comprises at least one mineral pigment or a filler in an amount of 2-30 wt.%. The fluoropolymer is a PVDF copolymer having 1-29 wt.% of hexafluoropropene. EXAMPLE - A dispersion coating comprising (g): polyvinylidene fluoride (PVDF) homopolymer resin (an emulsion polymer with Mol. wt. 450K, and Mn of 130K) (20.5); PARALOID B44 (RTM: acrylic copolymer) (8.8); toluene (14); isophorone (41.8); and R-960 (RTM: TiO2) (15.8), was prepared by mixing the ingredients for 30 minutes. The coating was applied to a primed polyethylene-terephthalate (PET) film. The coating was allowed to flash at room temperature for 10 minutes followed by baking at 200 degrees C for 10 minutes. A smooth white coating resulted. This coating was tested by both immersion in water at 100 degrees F for 1 week, and 85 degrees F/85% relative humidity for 1000 hours, followed by cross hatch adhesion test ASTM D3359 Measuring Adhesion by Tape Test. The coating successfully passed the adhesion test.