I get good, consistent results when foam casting with Aluminium with my Green Sand technique, but some folks recommended I try a thin plaster coating instead. I was more than happy to give this a go. So I gave a foam pattern a thin coat of plaster of Paris, let it dry, then fired up my home made electric foundry and poured.
Here's the results of my metal casting experiment using my electric home foundry. Enjoy!
#LostFoamCasting