Bentonite for Foundry

Bentonite is a commonly used material in foundry applications due to its ability to act as a binding agent and provide desirable properties to the molding sand used in the process.

Foundries typically use a mixture of sand, water, and a binding agent to create the molds used to cast metal parts. Bentonite is often used as the binding agent due to its ability to absorb water and create a cohesive mixture with the sand.

When bentonite is added to the sand mixture, it forms a clay-like substance that provides the necessary bonding strength to hold the sand particles together. This helps to create a strong and stable mold that can withstand the high temperatures and pressures used in metal casting.

In addition to its binding properties, bentonite also helps to reduce the amount of water needed in the sand mixture, which can help to reduce drying time and increase productivity.