In the No-Bake (Airset) Sand process, sand molds are created using a wood, metal, or plastic pattern. Sand is mixed with a plastic binder in a high-speed mixer. This sand is deposited into box containing the pattern and all essential gating, risers and chills for pouring. The sand mixture sets up hard in a few minutes and the mold is removed from the pattern. Cores for forming internal passages in the castings are made using the same process. Cores are carefully placed into the molds. The molds are then closed and are ready for pouring.

The No-Bake casting technique creates molds with excellent dimensional stability. The casting surface finish is also improved over other sand casting processes. No-Bake is one of the most efficient and advanced sand casting techniques currently available.