Hello friends My question is based on ANEOMARINEs thread "lost pla casting" because i don not want to interrupt his thread with my beginner questions i have decided to start new thread. I read on internet that plaster form is very dangerous for metal casting . Could you casting experts explain me how should be cured plaster form before pouring liquid metal into it? Then why is prefer casting to sand ? Plaster form seems to me easier and cheaper way to go thank you.