Why silicone mold arise from turning model less?

Added too much silicone oil in the process of making molds, silicone oil destroyed the molecular weight of the silicone mold will float to the surface turning model of fewer non-durable phenomenon. If you say do small pieces of the pattern is more complex products, the hardness of the silicone mold, it will float to the surface the less of the number of turning model, Because silicone excellent time very brittle, easily broken. On the other side, if to do to build the products with the hardness of the silicone to do mold, the same results will be unsatisfactory. Silicone rubber is too soft, it's tensile and tear strength will be reduced, do out of the mold deformation will reduce the number of turning model. Plastic mold quality are good, the silicone is not good or bad, only suitable or unsuitable. It is suitable for the size of the product hardness silicone to make the mold would not have thrown this situation.