Sealing is an important indicator to measure the quality of automobiles, which in turn has spawned the product of automobile sealing strips, which are mostly used in automobile doors, front and rear windshield, trunk, car windows and other parts to fill the gaps in the body parts, so as to achieve certain sound insulation, shock absorption, dustproof, waterproof, decorative and other effects.In recent years, China's automobile industry has developed rapidly, and automobile sealing strip manufacturing, as a related industry of automobiles, has greatly improved the manufacturing level of automobile sealing strips in China through the introduction of advanced foreign technology and equipment and continuous technological transformation, basically meeting the market demand for sealing strips in the domestic automobile industry.

According to the different raw materials, automobile sealing strips are mainly divided into three categories: plastic sealing strips, rubber sealing strips and thermoplastic elastomer sealing strips.Among them, plastic sealing strips are made of natural rubber, neoprene rubber, and soft PVC as the main raw materials. They have the advantages of easy recycling, easy processing, and low manufacturing costs, but they have poor mechanical properties and environmental protection. It is an early automobile sealing strip product in our country.Unlike plastic sealing strips, rubber sealing strips have gradually become the material for the production of automobile sealing strips in our country in recent years due to their good weather resistance, heat resistance, ozone resistance, ultraviolet resistance and processing properties.In addition, a number of thermoplastic elastomer (TPE, TPV, etc.) sealing strip products have also appeared in our country, which have also been used in the automotive processing and production process in our country.

In recent years, with the continuous and stable development of the economy, the income level of urban and rural residents in our country has been continuously improving. Coupled with the increasingly perfect domestic transportation infrastructure, residents' demand for automobiles still has a lot of room for growth.According to relevant data released by the Ministry of Public Security, as of the first half of 2020, China's car ownership has reached 2.700 million vehicles.As an essential product of the automobile manufacturing industry, automobile sealing strips have gained a certain market size in recent years, and they have reached 176 in 2019.200 million yuan, there is still potential for development in the next few years.

From the perspective of enterprises, there are currently a large number of enterprises engaged in the production and manufacture of automobile sealing strips in our country, which are divided into joint ventures/foreign-funded enterprises and local enterprises. Among them, joint ventures/foreign-funded enterprises still occupy the dominant position in the domestic automobile sealing strip market.