Stannol ecoloy tsc and tc lead free solder bars stannol 310503 stannolreg ecoloyreg tsc alloy has been developed to eliminate the use of tinlead alloys in existing production processes in the production of electronics the resultant solder is comparable or even better in all respects in terms of their characteristics than those produced with snpb solder stannol 310503 ecoloy tsc solder bar sn95ag4cu1 200g