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Step 4Pour the liquid metal
Like the last step, do this outdoors with good breeze, the stink of the plastic burning out of the mold is not too good for you.
Have everything ready with the foam mold and sand; also have a steel muffin tin or something similar for pouring excess aluminum into.
Pour slightly quick and aim well. This may take some practice with little chunks of foam before pouring the big project. Actually, I've recast the "big project" five times until I finally got the hang of casting.
Once poured, wait about five to ten minutes for cooling before poking at it. It will still be 500 degrees F or more; watch out it will be hot for about an hour after sitting. Use pliers to handle it. The sand also will hold this immense heat so don't start playing in it like I did, with a gloved hand (luckily).
Have everything ready with the foam mold and sand; also have a steel muffin tin or something similar for pouring excess aluminum into.
Pour slightly quick and aim well. This may take some practice with little chunks of foam before pouring the big project. Actually, I've recast the "big project" five times until I finally got the hang of casting.
Once poured, wait about five to ten minutes for cooling before poking at it. It will still be 500 degrees F or more; watch out it will be hot for about an hour after sitting. Use pliers to handle it. The sand also will hold this immense heat so don't start playing in it like I did, with a gloved hand (luckily).
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