Generally, the burning resistance of industrial grade mold silica gel is not very good. It is necessary to go through post-treatment and add a burning agent. However, the performance of liquid silica gel will be more or less affected by the addition of more anti burning agents. Therefore, whether to add a fire-resistant agent depends on whether the fire-resistant property is important to the production of your product. Moreover, the composition of the anti burning agent added by many manufacturers is poor, which can not achieve the effect of anti burning. Therefore, it is very important to find a reliable mould silica gel manufacturer.
Secondly, if the temperature of the product is really too high, Xiaobian still suggests to use environmental friendly high-temperature resistant mold silica gel. The temperature resistance of ordinary industrial grade mold silicone is about 70-80 degrees, and the temperature resistance of environment-friendly high-temperature mold silicone can reach 280-360 degrees. Therefore, it can be used for many products that need high-temperature production.
Or it is because the unsaturated resin and resin products will generate a lot of heat when they react with resin after adding peroxide curing agent. Generally, the resin curing time is 3 minutes. Therefore, demoulding should be carried out as soon as possible after 3 minutes to prevent the silica gel mold from burning.