A process for making an aqueous dispersion of fluoropolymer particles, said fluoropolymer having no measureable ionic groups, or a limited number of ionic groups providing an ion exchange ratio of greater than 53 and being selected from the group consisting of polytetrafluoroethylene or modified polytetrafluoroethylene having a comonomer content of no greater than 1 wt%, melt-processible copolymer comprising at least 60-98 wt% tetrafluoroethylene units and 2- 40 wt% of at least one other monomer, and fluorocarbon elastomer copolymers comprising 25 to 70 wt%, based on total weight of the fluorocarbon elastomer, of copolymerized units of a first fluorinated monomer selected from the group consisting of vinylidene fluoride, tetrafluoroethylene, and mixtures thereof, said process comprising: providing dispersed particulate of fluorinated ionomer in an aqueous polymerization medium, said fluorinated ionomer having a molecular weight which provides solid fluorinated ionomer particulate at room temperature; polymerizing at least one fluorinated monomer in said aqueous polymerization medium in the presence of said dispersed particulate of fluorinated ionomer and initiator to form the aqueous dispersion of particles of fluoropolymer, said process further comprising providing fluorosurfactant in said polymerization medium, said fluorosurfactant fluorosurfactant having the formula: [R 1 -O n -L-A -] Y + wherein: R 1 is a linear or branched partially or fully fluorinated aliphatic group which may contain ether linkages; n is 0 or 1; L is a linear or branched alkylene group which may be nonfluorinated, partially fluorinated or fully fluorinated and which may contain ether linkages; A- is an anionic group selected from the group consisting of carboxylate, sulfonate, sulfonamide anion, and phosphonate; and Y + is hydrogen, ammonium or alkali metal cation; with the proviso that the chain length of R 1 -O n -L- is not greater than 6 atoms. providing dispersed particulate of fluorinated ionomer in an aqueous polymerization medium, said fluorinated ionomer having a molecular weight which provides solid fluorinated ionomer particulate at room temperature; polymerizing at least one fluorinated monomer in said aqueous polymerization medium in the presence of said dispersed particulate of fluorinated ionomer and initiator to form the aqueous dispersion of particles of fluoropolymer, said process further comprising providing fluorosurfactant in said polymerization medium, said fluorosurfactant fluorosurfactant having the formula: [R 1 -O n -L-A -] Y + wherein: R 1 is a linear or branched partially or fully fluorinated aliphatic group which may contain ether linkages; n is 0 or 1; L is a linear or branched alkylene group which may be nonfluorinated, partially fluorinated or fully fluorinated and which may contain ether linkages; A- is an anionic group selected from the group consisting of carboxylate, sulfonate, sulfonamide anion, and phosphonate; and Y + is hydrogen, ammonium or alkali metal cation; R 1 is a linear or branched partially or fully fluorinated aliphatic group which may contain ether linkages; n is 0 or 1; L is a linear or branched alkylene group which may be nonfluorinated, partially fluorinated or fully fluorinated and which may contain ether linkages; A- is an anionic group selected from the group consisting of carboxylate, sulfonate, sulfonamide anion, and phosphonate; and Y + is hydrogen, ammonium or alkali metal cation;