Liquid silica gel generally refers to the two-component vulcanized silicone rubber, there are condensed craft liquid silica gel and molding food grade silica gel.How does liquid silica gel cure from a liquid state to a solid state?Liquid silica gel is composed of silica gel and curing agent, under the action of curing agent, silica gel molecules will produce cross-linking reaction.

    If liquid silica gel can be solidified into a solid state, it is necessary to add the corresponding curing agent.This involves the operation time and curing time of liquid silica gel. Under normal circumstances, the operation time of liquid silica gel is 30-40 minutes and the curing time is 3-5 hours at room temperature of 25 degrees Celsius.The liquid silica gel here refers to the silica gel that can vulcanize itself at room temperature, also known as two-component Rtemperature vulcanized silicone rubber.There is a liquid silica gel is not vulcanized at room temperature, must be through heating to cure.So let's talk about how RTV works first. 

    Rt-vulcanized silica gel has a standard curing time, but some customers want to speed up the liquid silicone molding time, how to improve it?Firstly, the solidification of silica gel can be accelerated by increasing the proportion of silica gel curing agent.Condensation mold silica gel is to increase the proportion of curing agent from 2% to 3% by the customer, and it is not recommended to add more than 4%, which can accelerate the solidification of silica gel.On the one hand, you can contact the manufacturer to improve the content of platinum catalyst in the silica gel. On the other hand, customers can directly improve the forming time of liquid silica gel by heating and baking.

    There is a kind of injection molding silica gel must be able to cure in a high temperature environment, directly extrusion silica gel into the metal mold and then high temperature curing, so that it becomes a solid state.