Food-grade silicone is widely used and can be found everywhere in life, so how can we tell if these products are made of food-grade silicone as raw material?

1, smell, smell is not food-grade, the current liquid silicone on 2 kinds, a condensation type (not environmentally friendly, smell, toxic), a molding (completely

environmentally friendly, non-toxic and odorless).

2, touch feel: food-grade silicone toughness, elasticity are very good, not easy due to external forces and permanent deformation, and feel will be smooth, but industrial silicone products are prone to deformation, rough feel.

deformation and rough feel.

3, from the transparency of raw materials to identify, food-grade silica gel belongs to the high transparency, ordinary silica gel belongs to the semi-transparent.

4, tensile toughness can also be distinguished, ordinary silica gel after stretching you will see the stretching place whitening phenomenon, food-grade silica gel stretching will not appear after the whitening phenomenon.

The white phenomenon will not occur after the stretching of food-grade silicone.

5, food-grade silica gel long-term use will not appear yellowing phenomenon.

Basically, the above reference will be able to judge the good and bad of a food grade silica gel.

Here is some knowledge of food-grade silica gel.

A, the characteristics of food-grade silica gel.

1, non-toxic, odorless, high transparency.

2, soft, good elasticity, kink resistance and no deformation.

3, not cracked, long life, cold and high temperature resistance.

4, with high tear strength and excellent electrical function.

5, placed at room temperature does not change yellow, no spray frost, no white, no fading, no scale in water for a long time, no odor.

Second, the advantages of food-grade silica gel.

1, food-grade silica gel colorful. Food-grade silica gel raw materials are transparent, and its color can be tinted by edible-grade color masterbatch, and the color of food-grade color masterbatch

The color of food grade silicone is colorful.

2, food-grade silicone is soft and comfortable, elastic, giving a comfortable touch and will not deform.