Recycle waste core sand and core butts from screening using basic dry attrition reclamation methods. Improve planning to reduce the number of tool changes to minimise mixed core sand waste and reduce core scrap. This evolution has led to facilities that produce minimal, if any, sand waste. Altogether, the core package approach represents a significant leap toward o a more sustainable and adaptable foundry model. As a result, such inorganic binder systems are gaining traction as a more sustainable alternative.