Sand Casting 3D Printing Materials & Binders

ExOne has several types of sand used in casting, that when matched in different binder combinations can be used to print cores and molds for both ferrous and nonferrous sand casting processes.

Versatility to Support Casting Processes

The combination of binder and sand used for casting can be tailored to individual casting quality requirements. Our equipment is able to handle a variety of sand casting materials and binders and can manage a print job with a silica casting sand and furan binder, as well as a silica casting sand with a phenolic binder, or a furan binder with cerabeads. No matter your requirements for final casting material and characteristics, ExOne sand printers and materials offer the versatility to support your casting process.

Furan Binders

ExOne offers a portfolio of chemically-cured, furfuryl-alcohol based binders and acid activators. This process is suitable for making high strength cores & molds in a wide variety of silica sand & ceramic casting media (such as cerabeads) with low Acid Demand Values (ADV).

CHP Binders

ExOne offers an ester-cured alkaline phenolic resole binder requiring additional post curing at elevated temperatures. This process is best suited for specific core & mold geometries that requiring maximum desandability and is compatible with a wide variety of silica sand & ceramic casting media (such as cerabeads).

HHP Binders

ExOne offers an acid-cured phenolic resole binder which requires additional post curing at elevated temperatures. This process is ideal for producing high hot strength dimensionally-stable cores using a wide variety of silica sand & ceramic casting media, including rough and fine cerabeads.

Inorganic Binders

ExOne offers a water-based, alkali-silicate binder requiring additional post-curing at elevated temperatures. Additional proprietary powder and fluid additives are incorporated into the process to optimize printed core & mold strengths as well as high-temperature casting properties. Learn more about our inorganic binder.