What's the solutions of increasing the duplication...

What's the solutions of increasing the duplication times of the silicone mold? A. Choose suitable silicone with suitable hardness according to the size and pattern of the product .Using the silicon rubber with a lower hardness to make molds for small sized products with delicate and intricate designs and the silicon rubber with a high hardness to makes molds for large sized products with simple designs. (Notes: we should choose the silicon rubber specifically according to the requirements of our products to avoid this problem.) B.we suggest do not add any silicone oil , as adding too much silicone oil in to silicon rubber. Silicon oil is an additive which destroies the molecular weight of silicone rubber and reduce the tension and tear strength.