Another way instead of smoking the mould is to use teflon spray ,Let it dry and then polish the cavity with cotton buds and toothpicks for the sharp corners/lube groove's and all your casting should just fall out and be smooth and shiny.
Another way instead of smoking the mould is to use teflon spray ,Let it dry and then polish the cavity with cotton buds and toothpicks for the sharp corners/lube groove's and all your casting should just fall out and be smooth and shiny.