Innovation and Service Excellence Aug 10, 2009 Considering the current state of the economy it is the responsibility of the leadership of the foundry industry to manage our business through a sustained economic downturn by making tough decisions. Our Competitive Advantage Dec 17, 2005 (Its education) Optimizing New Sand and Core Sand Additions in Foundry Green Sand Systems Aug 17, 2005 The old rule for new/core sand additions is 300 lbs. per ton of metal poured, but that approach needs to be re-evaluated ? and made more exact ? for current molding methods and materials.