A method of making a fluoropolyether elastomer containing triazine groups and having a glass transition temperature of less than -40°C (measured by modulated temperature DSC, measuring conditions: -150°C to 50°C @ 2-3°C/min, modulation amplitude of +/-1°C/min during 60 seconds), comprising a) providing (i) one or more saturated fluoropolyethers containing repeating moieties selected from (-C 4 F 8 O-), (-C 3 F 6 O-), (-C 2 F 4 O-), (-CF 2 O-) and combinations thereof and further containing at least one functional group at a terminal carbon atom of the backbone chain, or of a side chain if present, wherein the terminal carbon atom may be a primary or secondary carbon atom and wherein the functional group is capable of reacting with a functional group of the fluorinated compound according to (ii) below to form a triazine ring, and wherein the one or more fluoropolyethers of (i) have a molecular weight of less than 15,000 g/mole; (ii) one or more fluorinated compound containing at least one perfluorinated alkyl or perfluorinated alkylene moiety wherein the carbon atoms of the perfluorinated alkyl or alkylene moiety may be interrupted by one or more oxygen atoms and wherein the fluorinated compound further contains at least one functional group capable of reacting with the functional group of the one or more fluoropolyethers to form a triazine, and wherein either the functional group of the fluoropolyether is a nitrile group and the functional group of the fluorinated compound comprises a moiety selected from amidines, amidrazones, imidiates, amidoximes and salts thereof, or wherein the functional group of the fluoropolyether comprises a moiety selected from amindines, amidrazones, imidates, amidoxime, and salts thereof and combinations thereof and the functional group of the fluorinated compound comprises a nitrile group; b) curing the components according to (i) and (ii) to form triazines. a) providing (i) one or more saturated fluoropolyethers containing repeating moieties selected from (-C 4 F 8 O-), (-C 3 F 6 O-), (-C 2 F 4 O-), (-CF 2 O-) and combinations thereof and further containing at least one functional group at a terminal carbon atom of the backbone chain, or of a side chain if present, wherein the terminal carbon atom may be a primary or secondary carbon atom and wherein the functional group is capable of reacting with a functional group of the fluorinated compound according to (ii) below to form a triazine ring, and wherein the one or more fluoropolyethers of (i) have a molecular weight of less than 15,000 g/mole; (ii) one or more fluorinated compound containing at least one perfluorinated alkyl or perfluorinated alkylene moiety wherein the carbon atoms of the perfluorinated alkyl or alkylene moiety may be interrupted by one or more oxygen atoms and wherein the fluorinated compound further contains at least one functional group capable of reacting with the functional group of the one or more fluoropolyethers to form a triazine, and wherein either the functional group of the fluoropolyether is a nitrile group and the functional group of the fluorinated compound comprises a moiety selected from amidines, amidrazones, imidiates, amidoximes and salts thereof, or wherein the functional group of the fluoropolyether comprises a moiety selected from amindines, amidrazones, imidates, amidoxime, and salts thereof and combinations thereof and the functional group of the fluorinated compound comprises a nitrile group; (i) one or more saturated fluoropolyethers containing repeating moieties selected from (-C 4 F 8 O-), (-C 3 F 6 O-), (-C 2 F 4 O-), (-CF 2 O-) and combinations thereof and further containing at least one functional group at a terminal carbon atom of the backbone chain, or of a side chain if present, wherein the terminal carbon atom may be a primary or secondary carbon atom and wherein the functional group is capable of reacting with a functional group of the fluorinated compound according to (ii) below to form a triazine ring, and wherein the one or more fluoropolyethers of (i) have a molecular weight of less than 15,000 g/mole; (ii) one or more fluorinated compound containing at least one perfluorinated alkyl or perfluorinated alkylene moiety wherein the carbon atoms of the perfluorinated alkyl or alkylene moiety may be interrupted by one or more oxygen atoms and wherein the fluorinated compound further contains at least one functional group capable of reacting with the functional group of the one or more fluoropolyethers to form a triazine, and wherein either the functional group of the fluoropolyether is a nitrile group and the functional group of the fluorinated compound comprises a moiety selected from amidines, amidrazones, imidiates, amidoximes and salts thereof, or wherein the functional group of the fluoropolyether comprises a moiety selected from amindines, amidrazones, imidates, amidoxime, and salts thereof and combinations thereof and the functional group of the fluorinated compound comprises a nitrile group; b) curing the components according to (i) and (ii) to form triazines.