Craig Dabler - The DIY Castings Guy | Sand Casting - Vacuum Assist - Video Two @craigdabler-thediycastings7511 | Uploaded February 2022 | Updated October 2024, 1 hour ago.
After adding electrical tape to the flask seam and side hole I melted 1 1/2 ounces of sterling silver, turned on the vacuum, and poured the molten metal. A very good casting!