NOVELTY - A composition (C1) comprises: a metal powder; a solder powder which has a lower melting temperature than a melting temperature of the metal powder; a polymer; a carboxylated-polymer different from the polymer for fluxing the metal powder and cross-linking the polymer; a dicarboxylic acid for fluxing the metal powder; and a monocarboxylic acid for fluxing the metal powder.    USE - For forming conductor, useful for forming article, where article is photovoltaic (PV) cell or circuit board (all claimed).    ADVANTAGE - The composition provides improved composition for metallization of conductors, where conductors are suitable for current transport and/or electrical connection in variety of applications; whereas such metallization makes a substantial portion of overall manufacturing cost due to reliance on Ag. The solder powder, upon melting, fuses particles of metal powder together prior to composition reaching final cure state. Such melting and fusing, form electrically conductive bridges in conductor during formation. The carboxylated-polymer is useful for fluxing metal powder and for cross-linking polymer to form conductor. During heating of composition to form conductor, carboxylated-polymer fluxes metal powder at first temperature, and serves as cross-linking agent for polymer at second temperature, which is higher than first temperature. While serving as fluxing agent for metal powder, carboxylated-polymer dissolves metal oxide on surface of metal. Removal of metal oxide permits metal particles to group (or agglomerate) and better form conductive bridges in conductor during formation, especially in case of solder-Cu bonding. Typically, metal powder is fluxed in-situ during formation of conductor, such that pre-fluxing of metal powder prior to use is not necessary, and pre-fluxer/cleaner e.g. acid is not required to remove oxides from surface of metal powder prior to use in composition, so that composition lacks prefluxer/prefluxing. Furthermore, removed metal oxide is present in sufficient quantity to catalyze reaction between polymer and carboxyl groups of carboxylated-polymer at elevated temperatures. The metal oxide can initially be imparted by heating metal powder, which oxidizes to form oxides. The oxides can react with carboxylated-polymer to from salts. The oxides and salts can serve as catalysts for reaction of polymer and carboxylated-polymer. The monocarboxylic acid is also useful for fluxing metal powder, in addition to carboxylated-polymer and dicarboxylic acid. The monocarboxylic prevents premature cure of composition from metal oxides that may be already present or formed at ambient temperature. A high degree of branching in monocarboxylic acid gives rise to steric hindrance which imparts its salts formed with excellent stability.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) a conductor formed from the composition (C1); and    (2) an article comprising: a substrate; and a conductor disposed on and in electrical contact with the substrate for current transport, where the conductor is formed from the composition (C1).