Tried that. It was a No-go. 🙁 Ended up having to take a hammer to the whole thing to get the castings out. Now I need a new mold too. Oh well, that’s what happens when you forget important steps.
i am using an aluminum cast mold and just cleaned it a few days ago. yesterday i put it back together and i didn’t spray anywhere near enough urethane release spray. now my cast is stuck to the aluminum mold and will not release. HELP