Liquid silica gel is relative to solid low temperature vulcanized silicone rubber, it is a liquid glue, has good activity, fast vulcanization, more safe and environmental protection, can reach the requirements of food grade.The production of liquid silica gel cannot be separated from the help of liquid silica gel mold. Then, what are the characteristics of liquid silica gel mold?

    1. Shrinkage rate

    The industry sales of liquid silica gel mold in use, liquid silica gel will not shrink in the mold, but they will have a certain degree of shrinkage after demoulding and cooling.As for the extent of shrinkage, it depends on the quality of the mold and the formula of the rubber.However, from the mold perspective, the shrinkage rate may be affected by the mold temperature, the material, as well as the pressure in the mold cavity and the subsequent compression of the rubber.The liquid silica gel mold can effectively improve this situation.

    2. Parting line

    Determining the location of the parting line is one of the first steps in designing a silicone rubber injection die.The exhaust is mainly achieved by grooves located on the parting line. Such grooves must be located in the area after the injection of rubber material.The liquid silicone mold is designed in this way to avoid internal bubbles and reduce the strength loss of the adhesive.

    3, exhaust

    With the injection of liquid silica gel, the air trapped in the cavity of the liquid silica gel mold is compressed when the mold is closed, and then discharged through the ventilation groove during the mold filling process.If the air can not be completely discharged, it will remain in the rubber material, which often causes the product part to expose the white edge. 

    The above is the embodiment of the characteristics of liquid silica gel mold, mainly in the mold improvement treatment, can affect the shrinkage rate of liquid silica gel, linear and exhaust, so in the production of liquid silica gel, we need to choose the right liquid silica gel mold to ensure the quality of products.Choose our new best liquid silica gel raw materials, can meet your various product performance requirements, you are welcome to understand.