What is liquid rubber?

Liquid rubber is a special material that exhibits fluidity at room temperature. Its characteristic is that, although it is a liquid in its initial state, it can form a stable cross-linked structure after mixing with a curing agent and undergoing a chemical reaction, then exhibiting mechanical properties similar to those of solid vulcanized rubber.

Liquid rubber has a relatively low molecular weight, and its molecular structure is mainly linear; therefore, its viscosity varies with molecular weight. In appearance, it can be a thin, oily substance or a more viscous liquid. In this process, liquid rubber can be converted into a highly elastic rubber material through chain extension crosslinking reactions.

Compared with traditional solid rubber, liquid rubber has a simpler processing technology. Solid rubber requires many complex processes, such as mixing, molding, and vulcanization with various compounding agents. This is not only complex to operate but also extremely energy-intensive. Liquid rubber only needs to be mixed with the required compounding agents, and then a crosslinking reaction is initiated by heating, directly producing the final product, greatly simplifying the production process and significantly reducing energy consumption.

In addition, another significant advantage of liquid rubber is the convenience of its processing operations. Because liquid rubber remains liquid after mixing with compounds, it can be easily injected into various small parts or small gaps and then cured through a curing reaction. This characteristic gives liquid rubber a unique advantage in processing small, complex, or hard-to-reach parts.

Seal rings are made of high-quality silicone or rubber. Based on the above advantages, after years of research and development, liquid rubber has been widely used in many fields. Whether in automotive manufacturing, electronic devices, aerospace, medical devices, and other fields, liquid rubber plays an important role due to its unique properties and processing advantages. With continuous technological advancements and the expansion of applications, the future development prospects of liquid rubber will be even broader.