Nowadays, mold silicone is used more and more widely in the market, and customers have more choices. They can choose the mold silicone material suitable for their products according to different product needs; currently, mold silicone is mainly divided into two types, one is the addition type Food-grade mold silica gel, one is condensation-type industrial-grade mold silica gel; food-grade mold silica gel is a silica gel raw material made of platinum system, which is environmentally friendly, non-toxic and tasteless, and can be used in fields such as food molds or adult products; condensation-type industrial-grade silica gel It is mainly used for mold turning of cultural stones, resin handicrafts and other products. So how to distinguish between food-grade mold silica gel and industrial-grade mold silica gel?

1. Smell: There are currently two types of mold silica gel in the industry, addition-type food-grade silica gel and condensation-type industrial silica gel. Addition-type silica gel is non-toxic and tasteless; condensation-type silica gel is also called industrial-grade silica gel, which is not environmentally friendly and has a toxic smell. . Food mold silica gel is an additive environmentally friendly silica gel, which is non-toxic and odorless. Therefore, we can tell it by smelling it. If it smells, it must not be food grade.

2. Look at the mixing ratio: the mixing ratio of food-grade mold silicone is 1:1 or 10:1, while the mixing ratio of industrial-grade silicone is 100:2 or 100:4.

3. Touch feel: The toughness and elasticity of food mold silicone are very good, and it is not easy to be permanently deformed by external forces, and it feels smoother, while industrial silicone products are easy to deform and feel rough.

High hardness silicone foam IOTA-HT-820