Quote Originally Posted by aris View Post
Lots of people use white paraffin wax. Watch the video I linked to above - he demonstrates it.

Also http://www.lasc.us/FryxellFluxing.htm

More info on casting

http://www.lasc.us/ArticlesFryxell.htm
I have never found paraffin wax to be effective.
Another thing to bear in mind is that when it burns off the smoke is more volatile than beeswax.