Why does the Silicone mold just has few duplication times?

Why does the  Silicone mold  just has few duplication times?
The silicon mould just has few duplication times is due to follwoing reasons: adding too much silicone oil which will destroy the molecular of silicone rubber; making the mould for small and fine detailed products with higher hardness silicone rubber which is easy to break; making the mould for large products with soft silicone rubber which will reduce the tensile and tear strength of the mold, and the mould will have deformation. Thus, we should take the proper silicone rubber to make the mould for suitable products. 
  

Silicone  Rubber  application

(1): Silicone  Rubber   is mainly used for artwork craft ,toy gifts and craftwork gifts with the advantage of good tensile strength, high temperature resistance, and high duplication times, etc.

(2): Silicone  Rubber  is suitable for small products of fine and precision products which is difficult to demould.

(3): Silicone  Rubber is one of the products with the highest use level of the production of craftwork gifts and shrinkage is at  most 0.2%.

(4): Silicone  Rubber also can be used for Poly technique, lightings

Silicone  Rubber  Standard Datasheet

Any question abt Silicone  Rubber pls free to ask Ms. Joy

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