what did i do

[redriverhunter]

The other day i pluged in my pot and got side tracked and the pot was on all day at least 10 hours (bad mistake) any way when i looked at the pot there there was a crust like stuff on the surface and I broke it up it did not melt back in the so i scooped it out. what do you all think the stuff on top was. the lead in the pot was 50 percent wheel weights and 50 percent range lead
thanks

[462]

Could be crud that was never fluxed out, and you did right by tossing it.

Could be oxidation. In that case, fluxing will get it back into the mix.

[lwknight]

I,ve done that. not that long , just a couple hours though.
The stuff on top fluxed back in easily. It was just oxides.

[armyrat1970]

Could be wrong but I think it may have been the antimony seperating from the alloy after such a period of time. Probably better to skim it off as it would be hard to get it mixed back in. You may just have ended up with a purer, softer lead alloy. No problem, depending on what you are using it for.