Hi all, I have read many posts about the importance of reducing tin back into the melt, fluxing, etc even one where it seemed that if your lead is clean to start with, anything that forms on the top must be tin that has separated out. As I am new, I am likely going overboard with this, but it seems as if this stuff is just dirt.
This is after casting about 2k boolits.
Original lead- COWW purchased from the board here and it looked really clean. Vendor was Jetsfan and everyone raves about it.
Fluxing- at the end of every session I throw a piece of wax in about 1/2 the size of a grape, let it burn off and then try stir it in. Then, at the beginning of the next session, I pile all the old spures and the new lead on top and melt and mix it together. Once that happens, I throw another piece of wax on and let it burn off and then mix it. When that calms down I put about 1/2 - 1" layer of pine sawdust on top and just let it char up and sit there as I cast. The sawdust char usually lasts until the pot is about ready for more lead, in which case I throw more wax on and either add more lead or pack it up. When it gets to the point of being almost gone, I try to mix it back in, one way or another.
This stuff that you see in the pic does not seem to want to mix back in for nothing. If I have the remains of the last session totally covered with sprues, once it all melts, this pops up to the top like a fishing bobber and is totally dry.
Boolits seem to cast ok, but I am just paranoid about throwing out something I should be mixing in. If so, what more can I do to get it back into the melt?
thanks