I've been using this for flux for well over a year. Vita-flux.
http://www.midwayusa.com/viewproduct...tnumber=260495
It's some sort of wax, but not as hard as paraffin, or candle wax. It also seems to not burn quite as fast as paraffin. Flux can be, must be some form of carbon to work as a reducing agent. Even drain oil from your car, IF you can stand the smell.
:barf: