mgmorden
Member
Ok guys - I'm taking my first steps into a casting and have a few questions.
I'm currently working through melting down some scrap lead sheeting into ingots. Most of it has a thin plastic coating on one side which has a bit of paper attached in spots to it.
When I melt it down, this coating basically comes right to the top as visible trash that I can easily scoop out of the pot (I took a drill press to an extra table spoon and made myself a nice little spoon for scooping out that stuff).
Now, I'm fluxing the lead, but I'm not sure how much good I'm doing. I take a chunk of wax from a candle, throw it in the pot, and stir. After a few seconds the wax ignites and I just let it burn off. I then stir a bit more.
Now, here's my question - it seems that no matter HOW much I skim, the lead keeps forming a yellow/brownish film at the top. I skim that up, scoop it out, and it forms right back again. Does this lead just have THAT much trash in it or am I doing something wrong?
So far I've done about 30 lbs of ingots. I hoped to have more of it done by now but melting in this little 10 lbs pot is slow , and with the heat here its been hard to work up the motivation the get on my long pants and gloves and all. I've gotten most of the obvious trash out of it before it went in there, but I never got it quite down to the point where it wasn't forming that film.
Also, I've been hitting up Youtube for some videos on this, and a lot of people are wearing respirators. There seemed to be a lot of discussion popping up around that, but while I like Youtube videos, I don't always trust the commentators there - I trust people on this type of forum more .
So, with that in mind, should you still wear a respirator when outside, or is just being outdoors enough to not worry about the fumes?
Thanks.
I'm currently working through melting down some scrap lead sheeting into ingots. Most of it has a thin plastic coating on one side which has a bit of paper attached in spots to it.
When I melt it down, this coating basically comes right to the top as visible trash that I can easily scoop out of the pot (I took a drill press to an extra table spoon and made myself a nice little spoon for scooping out that stuff).
Now, I'm fluxing the lead, but I'm not sure how much good I'm doing. I take a chunk of wax from a candle, throw it in the pot, and stir. After a few seconds the wax ignites and I just let it burn off. I then stir a bit more.
Now, here's my question - it seems that no matter HOW much I skim, the lead keeps forming a yellow/brownish film at the top. I skim that up, scoop it out, and it forms right back again. Does this lead just have THAT much trash in it or am I doing something wrong?
So far I've done about 30 lbs of ingots. I hoped to have more of it done by now but melting in this little 10 lbs pot is slow , and with the heat here its been hard to work up the motivation the get on my long pants and gloves and all. I've gotten most of the obvious trash out of it before it went in there, but I never got it quite down to the point where it wasn't forming that film.
Also, I've been hitting up Youtube for some videos on this, and a lot of people are wearing respirators. There seemed to be a lot of discussion popping up around that, but while I like Youtube videos, I don't always trust the commentators there - I trust people on this type of forum more .
So, with that in mind, should you still wear a respirator when outside, or is just being outdoors enough to not worry about the fumes?
Thanks.