First of all, the silica gel mold for food is generally in line with the standard of food grade, and can be directly contained in the mouth. It is generally not toxic, and it is safe to use.

Silica gel is a kind of highly active adsorption material, silicone rubber color is white opaque, amorphous material, insoluble in water and any solvent, non-toxic and tasteless, stable chemical properties, except strong alkali, hydrofluoric acid does not react with any substance. High adsorption performance, good thermal stability, stable chemical properties. Silica gel because of its good stability and special resistance to high temperature and low temperature, so you can use microwave oven high temperature heating without deformation or release toxic substances, can also be placed in cold storage. Silica gel due to its simple sense is close to the body skin, and non-toxic odorless, so children use made of silicone pacifier also is very healthy, and good silicone with functions of automatic disinfection, not stained with besmirch, easy to clean, now a lot of fashion family are made with silicone kitchen utensils and appliances, because it is completely can cook in the microwave oven, more save worry save time, more important is not smoke.

The raw material of silicone mold

1, silica gel kitchenware raw materials can be divided into ordinary silica gel and meteorological silica gel according to the performance.

(1) Ordinary silica gel is also known as precipitated silica gel.

Color: translucent, milky white, light yellow, gray, etc.

Hardness :30°, 40°, 50°, 60°, 70°, etc., commonly used between 40°-70°.

Density: 1.1 to 1.12 g/cm3

Elongation rate: 400%

Uses: the most used are mobile phone keys, miscellaneous parts, conductive adhesive and other middle and low grade silicone products.

(2) Weather glue is also known as pure silica gel

Color: transparent.

Hardness :30°, 40°, 50°, 60°, 70°, 80°, etc., commonly used between 40°-60°.

Density: 1.1 to 1.12 g/c ㎡

Elongation: 600% 700%

Features: Due to the good transparency of the material, strong tensile resistance; The cost is high

Uses: silicone tube, protective sleeve and other high-grade need high elasticity products.

2, silica gel raw materials can be divided into solid silica gel and liquid silica gel according to the physical properties.