What if the injection-molded nylon product is too hard?

The finished product is too hard, so it is estimated that the effect is not great to reduce the mold temperature as much as possible. Some people say that trying MC nylon is a joke. MC nylon is cast nylon, how to inject it? At present, the most effective way to reduce the hardness of nylon is to add JPOLYMSJ nylon additive. Adding 5- 10% can reduce the hardness of your existing products by 20%. And the temperature resistance, wear resistance and thermal aging performance will not be reduced. At present, it is the most rational way. There are other ways, please share them with the sculptor.