Mold Making Silicone Rubber World……

In the process of making a silicone mold, bubbles in the liquid silicone may affect the appearance of the mold. If there is no vacuum pump, you may be confused about the handling of air bubbles. The following teaches you effective ways to reduce silica gel without a vacuum pump. First of all, we need to know why bubbles are generated. The first case is that the bubbles are not completely released when the silicone and curing agent are mixed. So you need to stir the liquid in one direction, and then let it sit for a while to let the bubbles float by themselves. The second case is that the raw material of silica gel contains some volatile impurities. When heating and curing, the impurities may vaporize and produce bubbles. Therefore, it is recommended to cure at room temperature or dry at low temperature to volatilize impurities. Secondly, when pouring silica gel, it is best to let it flow like a filament, so as to reduce bubbles. After pouring, use a toothpick to break the bubbles on th