Silicone is increasingly favored by people for its environmental performance. Nowadays, more and more other materials products on the market have been replaced by silicone products. To understand the knowledge of silicone products, we must start with silicone raw materials.
1, according to performance, can be divided into ordinary silica gel and meteorological silica gel
Ordinary silica gel is also called precipitated silica gel. Color: translucent, milky white, light yellow, gray, etc. Hardness: 30°, 40°, 50°, 60°, 70°, etc., commonly used between 40° and 70°. Density: 1.1-1.12 g/cm2. Elongation: 400%, use: mainly using on mobile phone buttons, miscellaneous pieces, conductive adhesives and other low-end silicone products.
Meteorological glue is also called pure silica gel, color: transparent. Hardness: 30°, 40°, 50°, 60°, 70°, 80°, etc., commonly used between 40° and 60°. Density: 1.1-1.12g/cm2, elongation: 600%-700%, features: due to the transparency of this material, strong tensile strength. Cost is more high than ordinary silicone. use: 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.