Flowtin ts is a lead free alloy developed to replace eutectic or close to eutectic tin lead silver alloys flowtin ts is based on a tin silver copper alloy with micro alloy additives switching to lead free with flowtin ts requires no adjustment of temperature profiles this results in longer lifetimes for manual solder tips the properties of the resulting solder joints are in every respect comparable to or better than those of solder joints produced with snpb solder