After being modified, the binder has excellent humidity resistance and is very steady when it is stored over a year.The sand molds or cores bonded by the binder have good collapsibility after casting.

• 通过对传统的磷酸盐进行改性,解决了磷酸盐抗吸湿性差及存放稳定性差的问题,并保持了其良好的溃散性及无害性,属绿色环保型铸造材料。