How to Minimize Air Bubbles in Castings Monica P. November 06, 2020 20:42 Updated This video demonstrates some techniques for minimizing air bubble entrapment when casting parts with casting resin. Related articles Can I do anything to minimize/eliminate bubbles when making my mold without using vacuum equipment? How do I avoid air bubbles in my part? What is vacuuming and why should I do it? How to Mix Casting Resin Amazing Clear Cast Comments 0 comments Article is closed for comments.