Condensed mold liquid silica gel is a kind of material commonly used in making molds, its main characteristics are good fluidity, high elasticity, high temperature resistance, wear resistance and other excellent properties, suitable for complex shape, high precision mold making. However, due to its long curing time, it will affect the production cycle, so how to shorten the curing time has become an important issue for manufacturers.


1. Increase the dosage of hardener


Hardener is one of the key factors of silicone solidification. Increasing the amount of hardener can shorten the curing time effectively. However, too much hardener will affect the quality and performance of silica gel, so when increasing the amount of hardener, it is necessary to make appropriate adjustment and control to avoid affecting the quality of the product.


2. Increase the curing temperature


Curing temperature is also one of the important factors affecting the curing time of silica gel. Increasing the curing temperature within a certain range can accelerate the curing of silica gel, but too high curing temperature will cause silica gel to produce bubbles, discoloration and other defects, thus affecting the quality of the product.


3. Increase stress


In the process of silicone curing, increasing the appropriate pressure can accelerate the curing time. This is because pressure can promote cross-linking between silicone molecules, thus speeding up the curing process. However, too high pressure will cause the silicone to produce indentation, deformation and other defects, so the need for appropriate adjustment and control.


4. Use accelerants


An accelerator is a special chemical that speeds up the curing rate of silicone. There are many kinds of accelerators, and different kinds of accelerators are suitable for different silica gel materials and curing conditions. Therefore, in the selection of accelerators need to be selected and used according to the specific situation.


In short, the shortening of solidification time of liquid silica gel in condensed mold needs to consider a variety of factors. In actual production, it is necessary to choose the appropriate method for adjustment and control according to the specific situation to ensure the quality and performance of the product.