There is a difference between the shrinkage rate and the shrinkage rate of liquid silica gel, so whether the low shrinkage rate of silica gel must be able to process low shrinkage of silica gel products?The answer is no. In order to understand this problem, we have to distinguish the difference between liquid silicone shrinkage and liquid silicone shrinkage.

    The shrinkage rate of liquid silicone refers to the reduction of the weight of liquid silicone, and the shrinkage rate of liquid silicone corresponds to the reduction of the volume, the two are related, but not the same.The shrinkage rate increases, the shrinkage rate will increase correspondingly, and the liquid silica gel does not shrink, does not mean that it must not shrink!Because liquid silica gel processing is often carried out at high temperature, that is, when forming into a solid, the temperature will be very high, we know that objects have the characteristics of thermal expansion and cold contraction, silica gel is no exception, so even if the high temperature molding of non-shrinkage silica gel, the temperature returns to room temperature, the size of silica gel products will shrink, resulting in shrinkage rate. 

    It can be known that, in addition to the shrinkage rate, the ultimate shrinkage rate of liquid silicone products affects the shrinkage rate of liquid silicone, as well as the thermal expansion coefficient of silicone and the molding temperature.General liquid silica gel molding temperature between 120oC-180oC, its line shrinkage rate between 2-3%.

    Now do you understand the difference between the shrinkage and the shrinkage of liquid silicone?Then pay attention to our new best, learn more about liquid silica gel information.