Sitting here looking at half a spool of Kester solder. Listed as solid wire, measures 0.032" diameter, but the markings that indicate what type of solder it is have faded away. Question.... is there any way to determine what solder this is? Based on it's somewhat shiny appearance and the small diameter I'm thinking 60/40 or maybe even 63/37, (as opposed to 50/50) but ..... who knows? Suggestions, thoughts, ideas ? BTW, I marked the 032 on the spool after I measured the solder.