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Liquid high temperature silicone rubber

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First, liquid high temperature silica gel is also called addition molding silica gel, two-component addition molding silica gel. It consists of two parts: the A component is silica gel, and the B component is silica gel containing a curing agent; the two components are mixed in a ratio of 1:1.


Second, liquid high temperature silica gel use liquid high temperature silica gel is mainly used in the manufacture of metal crafts, alloy car silicone mold, crystal drill silicone mold, simulation gem, precision mold manufacturing, toys, alloy car, large pieces of cement components, sandstone sculpture, food grade mold , plaster product molds, large-scale sculpture mold production.


Third, the characteristics of liquid high temperature silica gel 1, with excellent high temperature resistance, the temperature can reach 300 degrees to 500 degrees. 2, food grade, non-toxic and tasteless, passed the FDA food grade certification. 3, no shrinkage, high precision. It can solve the products that can not be made by laminating machine, fill the gap of making large-scale lead-tin alloy technology and fine pattern products. It is the most advanced HTV-2 high-temperature glue in China. It is made of lead-tin alloy crafts and precision molds. Preferred material.


Fourth, the use of liquid high temperature silica gel 1, mixing: A component (base glue) and component B (curing agent) mixed in a weight ratio of 10:1, mixing can be used manually or equipment. 2. Defoaming: The mixed rubber should be defoamed before filling. When used in a small amount, it can be carried out in a vacuum dryer. Under vacuum, the volume of the rubber can be increased by 4 to 5 times. Therefore, the volume of the defoamed container should be 4 to 5 times larger than the volume of the rubber. After a few minutes. The gel volume returned to normal, and the defoaming process was completed when no bubbles escaped from the surface (about 10 minutes). 3. Surface treatment: The surface of the mold to be contacted by the rubber or the surface of the material to be potted may be liquid paraffin or the like as a release agent. 4. Vulcanization and demoulding: The compound after defoaming is placed at 120±5°C for 30 minutes for curing, 60~70°C for 2 to 3 hours for curing, and the room temperature curing time is for 24 hours. The curing temperature and time can be based on Depending on the process conditions.

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