Silica gel is more and more popular because of its environmental performance. Now more and more other material products on the market are replaced by silica gel products, to understand the knowledge of silica gel products, have to start from silica gel raw materials.

1, according to the performance, can be divided into ordinary silica gel and meteorological silica gel ordinary silica gel, also known as precipitation silica gel, color: translucent, milky white, light yellow, gray, etc.. Hardness :30°, 40°, 50°, 60°, 70°, etc., commonly used between 40°-70°. Density :1.1-1.12g/c㎡. Elongation :400%, use: the most used is mobile phone keys, miscellaneous, conductive adhesive and other middle and low grade silicone products. Weather glue, also known as pure silica gel, color: transparent. Hardness :30°, 40°, 50°, 60°, 70°, 80°, etc., commonly used between 40°-60°. Density :1.1-1.12g/ C ㎡, elongation :600%-700%, features: due to the good transparency of this material, strong tensile resistance. High cost, use: silicone tube, protective sleeve and other high-grade need high elasticity products.

2, according to physical properties, can be divided into solid silica gel and liquid silica gel. Solid silica gel is mainly used for molding products. For example: silica gel set, silica gel tableware, silica gel buttons, etc., liquid silica gel is mainly used for extrusion molding products, such as silica gel pacifier, silica gel tube, etc