21st century silica gel is becoming more and more popular because of its environmental performance. Nowadays, more and more other materials on the market have been replaced by silicone products. To understand the knowledge of silica gel, we must start with silicone raw materials.
1.according to performance points, can be divided into ordinary silica gel and meteorological silica gel;
Ordinary silica gel
Color: translucent, milky white, light yellow, gray, etc.
Hardness: 30°, 40°, 50°, 60°, 70°, etc., commonly used between 40° and 70°.
Uses: The most used are low-end silicone products such as mobile phone buttons, miscellaneous pieces, conductive adhesives.
Meteorological glue, also known as pure silica gel
Hardness: 30°, 40°, 50°, 60°, 70°, 80°, etc., commonly used between 40° and 60°.
Features: Because of the transparency of this material, the tensile strength is strong. High cost
Uses: Silicone tube, protective sleeve and other high-end products that require high elasticity.
2.according to physical properties, can be divided into solid silica gel and liquid silica gel.
Solid silica gel is mainly used for molded products.
For example: silicone sleeve, silicone tableware, silicone buttons, etc., liquid silicone is mainly used for extrusion molding products, such as silicone nipples, silicone tubes and so on.