NOVELTY - Tetrafluoroethene-based fluoropolymer, having a melt flow index (265/5) of 13-30 g/10 minutes (ASTM) and a melting point (ASTM) of 170-230 degrees C, is new. The tetrafluoroethene-based fluoropolymer is a copolymer comprising more than 52 wt.% of the polymer of units derived from tetrafluoroethene, and is copolymers comprising interpolymerized units of tetrafluoroethene and ethene or interpolymerized units of tetrafluoroethene and hexafluoropropene.    USE - The tetrafluoroethene-based fluoropolymer is useful in an extrusion product (including a melt pellet and an extruded sheet), where the extruded sheet is useful in a multi-layer article, preferably a protective sheet of a solar module (all claimed).    ADVANTAGE - The tetrafluoroethene-based fluoropolymer has improved heat resistance, chemical resistance, weatherability, UV-stability, and barrier resistance to elements such as water, cut-through resistance, and insulation characteristic.    DETAILED DESCRIPTION - Tetrafluoroethene-based fluoropolymer, having a melt flow index (265/5) of 13-30 g/10 minutes (ASTM) and a melting point (ASTM) of 170-230 degrees C, is new. The tetrafluoroethene-based fluoropolymer is a copolymer comprising more than 52 wt.% of the polymer of units derived from tetrafluoroethene and is copolymers comprising interpolymerized units of tetrafluoroethene and ethene or interpolymerized units of tetrafluoroethene and hexafluoropropene. The tetrafluoroethene-based fluoropolymer is obtainable by a radical aqueous emulsion polymerization in the presence of one or more fluorinated emulsifiers of formula ((R1O-L-CO2-)(X+)) (I), and one or more fluorinated liquids comprising saturated partially or perfluorinated hydrocarbons which contain one or more catenary heteroatoms comprising oxygen and/or nitrogen and have a boiling point of greater than 50 degrees C.    R1 = partially or fully fluorinated alkyl (optionally interrupted with one or more O);    L = partially or fully fluorinated linear or branched alkylene (optionally interrupted with one or more O); and    X+ = a cation or H+.    INDEPENDENT CLAIMS are included for:    (1) an extrusion product comprising the tetrafluoroethene-based fluoropolymer having a gel content of less than 3000/m2;    (2) a multi-layer article comprising an extruded sheet comprising the tetrafluoroethene-based fluoropolymer;    (3) making an extruded article comprising providing a composition comprising the tetrafluoroethene-based fluoropolymer, and subjecting the composition to melt-extrusion to obtain the extruded article; and    (4) making the tetrafluoroethene-based fluoropolymer.