Thread: Flux and casting

a handful ( maybe two heaped tablespoons of sawdust ( I used to use my tea-tree(?) smoker stuff, sprinkle on the top and leave whilst pot is heating up and it is dried out. will go black from the heat and then you can carefully stir that through the molten lead whereby it does its magic and collects unwanted contaminates.
Far easier to keep the pot clean I found using a dry flux and you end up taking it all out as you begin to scoop off the dross. Once scooped off and you are happy with that your mix is clean I used to throw another couple of spoons, about 1/8th of an inch thick, on top of the clean mix as a cushion to stop any drips going in and prepping the sawdust for the next dross cleaning.
As others have said, you don't want to be pushing anything under the surface until you know it is 100% dry.