I haven't done any casting in a little over twenty years, but continued to stock pile WWs. I'm finally getting back into casting! I'm concerned about the zinc weights. Much has be written on how to test for zinc in WW, and I think that I've read most, but have a question. Would a dull hacksaw blade give good results as a testing tool. It seemed to go much easier and faster than using pliers. I used a hacksaw blade yesterday, but culled nothing. So..... Now I'm concerned that I was cutting the zinc as well as the lead weights. Would the zinc cut rather easily, or just scratch the surface?
Thanks for any and all help! And your patience, if this has already been covered. memtb