Hi guys ,
some youtube video to share with my last home lost foam casting ( very simple models).
i would be interested to try it in sand with liquid coating but would need a simple recipe for the coating . if someone can help me it would be very nice.

part 1: foam models making
part 2: mold making : https://www.youtube.com/watch?v=MfZdFEzOKDA
part 3: aluminium casting: https://www.youtube.com/watch?v=AXEEMhkgFvE
part 4: mold release: https://www.youtube.com/watch?v=JUj1kANFbJ8