Silica gel has two physical states: one is a flowing liquid and the other is a solid. Silicone that visually flows like water is called liquid silicone rubber; of course, liquid silicone rubber has a certain viscosity and is usually denser than water, so its fluidity is not as strong as water. Liquid silicone rubber will undergo a curing reaction when encountering a curing agent or catalyst. Depending on the type of liquid silicone rubber, it will solidify into solid silicone rubber with different hardness and different properties.

Liquid silicone rubber type
Liquid silicone rubber can be divided into the following 8 types according to different properties and uses:

1. Mold silicone
Mold liquid silicone rubber is a new type of molding material. Silicone molds made with mold silicone have huge advantages in production efficiency and production cost compared to steel molds. Nowadays, mold silicone has been widely used in mold production in various industries such as toy industry, character reproduction, building decoration industry, unsaturated resin handicraft industry, simulated animal and plant sculptures, Buddha carving handicrafts, etc.

2. Pad printing silicone
Pad printing liquid silicone rubber is used to make pad printing rubber heads, mainly used for printing plastic toys, electroplating products, electronic toys, trademarks, and irregular patterns. The pad printing rubber head is to use the pattern on the steel plate as a carrier through the rubber head, and then transfer the pattern on the steel plate to the toy product. Pad printing liquid silicone rubber can control the hardness by adding silicone oil.

3. Electronic potting silicone
Electronic potting liquid silicone rubber is mainly used for potting electronic products. Electronic potting liquid silicone rubber can be used to seal, waterproof, dustproof, thermally conductive, shockproof, and insulating electronic products. In addition, one is a potting glue for LED, which has the characteristics of high transparency and high refractive index.

4. Prototype silicone
Prototype liquid silicone rubber, also known as first-panel silicone, is usually used to make prototype models. Compared with prototype oil mud, prototype liquid silicone rubber has the characteristics of wear resistance and strong resilience after curing.

5. Silicone glue
Silicone glue is what we usually call glass glue, and it is also a type of liquid silicone rubber. Silicone glue adds curing agent randomly during use. When it encounters water molecules in the air, it can solidify into a tough solid, thereby achieving adhesion between glass gaps. Cured silicone glue has the characteristics of weather resistance, vibration resistance, moisture resistance, odor resistance, and adaptability to large changes in cold and heat.

6. Silica gel for clothing labels
After the liquid silicone clothing label is cured, it is the silicone label we often see from clothing manufacturers. The use of liquid silicone rubber to make clothing labels has the characteristics of good feel, wear resistance, and high production efficiency.

7. High temperature silicone
Ordinary high-temperature liquid silicone rubber is used to make silicone molds and can withstand high temperatures between 200 and 300 degrees Celsius. High-temperature liquid silicone rubber used in aviation and hot stamping industries can work in environments of 400 to 1300 degrees Celsius for a long time after curing. Performance changes occur.

8. Human body silicone
Human liquid silicone rubber is a kind of liquid silicone rubber with low curing hardness. It is non-toxic and has no adverse effects on human body. Therefore, it can be implanted inside the human body and is usually used to make prostheses. It can also be used for simulated characters, etc.