How To Eliminate Surface Bubbles in Your Casting


Milo demonstrates how you can use a pressure chamber and compressed air to achieve bubble-free castings using the duoMatrix NEO polymer-modified gypsum system. Some complicated mold designs have a lot of tight spaces making it difficult to get a pristine casting surface by simply pouring and slush casting. Pressure casting is an effective way to get a perfect casting every time, greatly reducing the overhead cost of having to scrap imperfect castings.

Materials Used in this Tutorial

  • duoMatrix NEO
  • Drill Mixer
  • Silicone Mold
  • Pressure Pot