Abstract: The addition of the metal drier to the phenolic urethane binder enhances the breakdown of the binder when the system is subjected to the elevated temperatures caused by pouring the molten metal into the mold and enhances the subsequent shake out of the sand from the cores and molds.
Abstract: A foundry binder for preparing shaped foundry products, said binder having improved breakdown, which binder comprises:(a) a resin component organic resin alkyd resins, furan resins, shell phenolic resins or acid setting phenolic resin and(b) a catalystic amount of a metal drier.