Hi im new here. So i normally melt aluminium and have a few questiosn that i havent been able to find answers to online. I figured this would be the place to ask.
So the first one is about melting anodized aluminium. I have a couple of pots that im thinking about melting. From what i understand, anodized aluminium just means more slag. Is this worth melting/should i do anything differently?
Ive been using plaster as insulation but it cracks easy and i cant melt much more than aluminium. Ive looked into fireclay/firebrick. Is it as simple as adding water to the fireclay? Are there any other long lasting cheap refractories?
Last question is about silicone as a molding material for lost wax casting. Alginate works nicely for capturing detail on hands for example, and you can slide your hand out. I need to use silicone because it can take the temps of hot wax. Am i going to be able to get my hand out of there?