TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The multilayer structure comprises either two layers, which are an outer layer comprising the fluoropolymer and an inner layer comprising polyvinyl chloride; or three layers, which are an outer layer comprising the fluoropolymer, an intermediate layer comprising of polyvinyl chloride and an inner layer comprising the fluoropolymer. In the multilayer structure, an acrylic or fluorinated polyurethane type binder is placed between the fluoropolymer layer and polyvinyl chloride layer. The fluoropolymer layer comprises one or more films of fluoropolymers. The polyvinyl chloride layer comprises one or more films of polyvinyl chloride. The multilayer structure is produced by coextrusion process, extrusion coating process or lamination.    TECHNOLOGY FOCUS - POLYMERS - Preferred Method: The fluoropolymer is obtained by either polymerizing one or more fluorinated alkene monomer(s) of formula (CF(X1)=C(X2)(X3)) (I), or polymerizing (I) with one or more alkyl vinyl ether monomer formula (CH2=CH(OR)) (II).X1 = H or F;X2, X3 = H, F, Cl, a fluorinated alkyl group of formula (CnFmHp) or fluorinated alkoxy group of formula (CnFmHpO-);n = 1-10;m = 1 to (2n+1);p = 2n+1m;R = an alkyl, (cyclo)aliphatic group or R1aOH; andR1a = aliphatic alkyl.Preferred Components: The fluoropolymer further comprises at least one homopolymer or copolymer of methyl methacrylate; and inorganic particle comprising titania, zinc oxide, zinc sulfide, silica, quartz, alumina, calcium carbonate, talc, mica, dolomite, montmorillonite, barium sulfate, zircon and/or magnetite. The polyvinyl chloride is from homopolymer of vinyl chloride, optionally chlorinated polyvinyl chloride or optionally crosslinked copolymer obtained by copolymerizing vinyl chloride with one or more ethylenically unsaturated comonomers. The ethylenically unsaturated comonomer is vinyl chloride, vinyl fluoride, vinyl acetate, vinyl propionate, vinyl butyrate, acrylic and methacrylic acid, nitrile, acrylonitrile, acrylamide, methacrylamide, methyl(meth)acrylate, butyl acrylate, ethyl acrylate, 2-ethylhexyl acrylate, styrene, ethylene, propylene or 1-butene.