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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 handicrafts moulds Silicone rubber:
handicrafts moulds making silicone rubber is a white or red flowable liquid with a hardness of 22
handicrafts moulds silicone rubber is mainly used for model design of manual mold,low melting point alloy molds, handicrafts
Delivery Time: | within 3 days after we get your bank receipt |
Package: | 25kg/drum and 200kg/drum |
Supply Ability: | 8 Ton per Day |
Minimum Order Quantity: | 200 Kilogram |
Payment Terms: | L/C,T/T |
Port: | shenzhen |
FOB Price: | US $7.2 - 8.3 |
Model Number: | HY 528#540#625#silicone rubber |
Brand Name: | Hongye silicone rubber |
Place of Origin: | Guangdong China (Mainland) |
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