Impact modifier is mainly used for PVC processing to improve its impact resistance without changing character of PVC. 

Strong impact resistance MBS(YFG-56) are mostly used for low opacity or opacity sheet,pipe fitttings,panels and some other products,it also can be used for BPT/PC ABS to improve its toughening effect.

This product should be stored in a cool and ventilated place, and its expiration is one year.Then after performance testing, if no change, it is also useful.