Q. What do you understand by Binders?
Binders used in a foundry are : Inorganic and organic binders. Organic binders used for core making and will be discussed later.
Clay binders are the main inorganic binders. Clays are formed by weathering and decomposition of rocks. the common type of clay used in the moulding sand are fireclay, kaolinite, illite, and bentonite clays are most popular, because they have high thermo chemical stability.