What sand is used for casting?

Quartz sand for casting is necessary. The processed quartz sand particles have regular shape and high hardness, which makes them have good fluidity and durability in sand mold manufacturing. Sand casting is to mix clay and quartz sand to form a sand mold, then pour the molten metal into the sand mold, and get the required castings after the metal cools and solidifies. The characteristics of quartz sand enable it to provide enough support and stability to withstand the pressure and thermal expansion of metal liquid, while maintaining the shape and integrity of sand mold.