View Single Post
  #68  
Old 11-24-2003, 02:18 PM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 21,506
Pete VanderLaan is on a distinguished road
If you don't think your batch is homogenous, you aren't mixing it well and you should never try to melt it in the first place.. The old adage is "Well mixed is half melted" Trust me on this one.

What I meant by volition loss is that about 20 percent of a batch goes up the flue in the form of carbon dioxide. 100 lbs of batch usually makes about 80 lbs of glass. It varies based on the formula.

As to the chemicals rolled in pieces. Lampworkers and fusers keep doing this stuff and it is serious crap that really should not be done. Inevitably they get their noses right into it. Copper can poison you just as well as the big nasty metals. It's just a question of overkill, a great term.
Reply With Quote