What is the reason for the poor tensile force of the mold silicone rubber?

Mold silicone rubber has the characteristics of high temperature resistance, good tensile force, many times of mold reversal, and high frequency of repeated use. It is loved by silicone products factories! However, some manufacturers add a lot of silicone oil to the silicone in order to make the silicone easier to handle in the production of mold silicone!

Everyone knows that silicone oil can destroy the molecular weight of silica gel, and the viscosity of silica gel is reduced, making the silica gel softer and easier to operate, which ultimately leads to poor tension in the production of silicone molds! Fewer times of mold reversal!

What are the influencing factors of the low number of mold silicone reversals? In fact, the first point we have already talked about above, due to the excessive addition of silicone oil, the second point is the use of low-hardness silicone molds for building products, because the silicone is too soft, resulting in insufficient performance, and ultimately resulting in tension And the tearing strength is reduced, the produced mold is easy to deform, and the number of mold turns is reduced! There are also some small products with more complicated patterns, because the silicone is too hard for too long, it will be very brittle! It is easy to break, and opening the mold with a hard silicone mold will also reduce the number of mold turning times of the mold silicone! As for solving the problem of the low number of times of mold silicone reversal, we only need to focus on the concept of making molds with suitable hardness of silicone!