In life, we should see many different kinds of silicone products, but I don't know if you notice that not every one is a material. You may not see the difference except in appearance and color. In fact, there are different differences in hardness and tensile elasticity. Whether the main difference lies in the difference of materials, do you know the difference?








As the saying goes, interlaced scanning is like a mountain, with a wide understanding of the silicone product industry. Today, we have learned some common knowledge about silica gel products, among which silica gel can be divided into silicone and inorganic silicon, and silica gel products can be divided into liquid silica gel.






Liquid silicone - liquid silicone is a relatively solid high temperature vulcanized silicone rubber. It is a kind of liquid rubber, with good fluidity, fast curing speed, more safety and environmental protection, which can completely meet the requirements of food grade.






Solid silica gel solid silica gel is a kind of cellular polymer elastic material, which has the characteristics of high temperature resistance, cold resistance, solvent resistance, hysteresis resistance, viscosity resistance, electrical insulation, chemical industry, etc., and has a wide range of applications.






Comparison between liquid silica gel and solid silica gel






Shape - as the name suggests, liquid silicone is liquid and has fluidity. Solid silicone is solid and has no fluidity.






Safety - liquid silica gel is a kind of food material with high transparency and safety. Auxiliary materials such as vulcanizing agent are not added in the forming process, and are sealed and molded.






Solid silica gel is a transparent and environmentally friendly material. In the process of molding, curing time is needed, and molding is carried out by opening mold.






Molding method - liquid silicone is injection liquid silicone rubber (LSR): full name injection liquid silicone rubber, curing equipment of injection molding machine.






The process of injection molding machine is very simple (there is no need for manual process, such as batching, rubber mixing, cutting, arrangement in high temperature glue process, only one worker can take the product), high product precision (all manual procedures before molding) are replaced by machine, high output (A / b glue is mixed for several seconds at a certain temperature), labor saving, power saving, material saving and many other advantages, It can produce high temperature rubber products.






Solid silicone rubber molding is a solid material. After kneading with a mixer, the cutter cuts the appropriate size and thickness of the product and mold, then puts it into the mold and molds it at a certain temperature under a pressure forming machine. When demoulding is similar to plastic products, the mold also needs to be cleaned.






How to distinguish liquid silica gel and solid silica gel products






Liquid silica gel products have high transparency, no peculiar smell, and glue injection port.






Solid organosilicon products have low transparency, vulcanizing agent or other flavors that mask the vulcanizing agent.






Liquid silica gel is commonly used in baby products and kitchen products as well as medical products directly contacting food and human body.






Solid silicone is commonly used in daily necessities and industrial miscellaneous and automotive parts.