human statue duplication by silicone rubber

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To mix the silicone and catalyst with a standard mixing ratio and then do the process of Vacuum-Pumping. Bubbles will come out during the mixing of the silicone and hardener, if without Vacuum-Pumping, the bubbles cannot be released from the mixture, as a result, there will be many bubbles in the finished silicone mold. Then the mold has a less tensile strength which will affect the reproduction times. Such an unsmoothed silicone mold will affect the quality of the production directly.

(3) Vacuum-Pumping Process

Firstly, you should deal carefully with the Original mold or the products you want to be molded. If no polishing of the Original mold or the products you want to be molded, the surface of the original mold or products is not so smooth or perfect, then the products made out of silicone molds will be not up to standard.

(2) Preparation of the Original molds

Component A is silicone rubber, and component B is curing agent or vulcanizing agent, usually the mixing ratio  will be 2-3%. Such as to 100G silicone rubber should be added 2G catalyst and then mix them totally(Note: the weight of the silicone and catalyst should be weighted correctly. According to local weather, the mixing ratio can be 100 to 2 under room-temperature 25 ⁰C; if the local weather is about 10 ⁰C, then the maximum mixing ratio should be 5%; When local temperature is -5 ⁰C, no reaction will happen between the silicone and hardener; once the temperature of local weather is 38-45 ⁰C, the mixing ratio of silicone and silicone rubber should be 1 %).

(1)  Correct mixing ratio

Operation Instruction for human statue  molds making  silicone rubber :

The human statue silicone rubber  is a white or red flowable liquid with a hardness of 22

Good tensile and tear strength, high reproduction times and with resistance of high temperature, etc.