1) If using not proper silicone rubber, such as: too soft silicone to make molds for large sized products with simple designs, or silicone with too high hardness to make molds for small sized products with delicate and intricate designs, the silicone molds will appear to have less reproducing times; 2) If adding too much silicone oil into silicone rubber when making moulds, the moulds will have less reproducing times, as silicone oil may damage the moleculars, and reduce the tensile&tear strength of silicone molds.
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