Hello all!
Complete casting newbie here! I was watching a video on YouTube of a guy making his own Lyman#2 alloy recipe. He melted the antimony first, then added the lead. After adding the lead he added in flux. All of this made perfect sense to me giving the different melting points of the two metals and adding flux to separate the good from the crud also makes sense. My question is - after he added the flux, he waited for a heavy smoke to form and then lit the fumes on fire with a stick lighter. I assume he was doing so to burn off combustible contaminants? Couldn't he just wait for the crud to form on the top and scoop it off or is the burning off step required?
Thanks in advance for shared insight!
Mike