Automobile sealing strips are widely used in doors, windows, car bodies, sunroofs, engine boxes and trunks. They have the functions of sound insulation, dust prevention, water seepage prevention and shock absorption, and maintain and protect the micro-environment in the car, thus playing an important role in protecting the passengers, electromechanical devices and accessories in the car. With the development of the automobile industry, the importance of the beauty, environmental protection and comfort functions of sealing strips has become increasingly prominent.

The foreign automobile industry has conducted special research and development on the sealing system installed in various parts of the car (called the automobile sealing system, AUTOMO-BILE SEALING SYSTEM), and its importance is increasingly attracting people's attention.

1. According to the name of the installation part (component), the seals include: hood seal (HOOD), which can be divided into front, side and rear; door frame seal (DOOR SEAL); front and rear windshield seals (WINDOW SCREEN); side window seals (SIDE WINDOWSEALING); sunroof seals (SUNROOF SEALING); primary door seals (PRIMARY DOOR SEAL); glass run channel seals (GLASSRUN CHANNEL); inside and outside strips (WAISTLINE); trunk seals (TRUNK SEAL); anti-noise seals (ANTI-NOISE); anti-dust strips (ANTI-DUST), etc.

2. According to the sealing characteristics, they can be divided into weather seals (WEATHERSTRIP) and general seals (SEALING). Among them, the weather seal has a hollow sponge bubble tube, which has a better temperature and humidity maintenance function. Common weather seals include door frame seals, trunk seals, engine cover strips, etc. Common general seals include front and rear windshield seals, corner window seals, inner and outer strips, etc.

3. According to the composite structure of the rubber material, it can be divided into pure rubber seals - composed of a single type of rubber; two-composite seals - composed of dense rubber and foam sponge rubber, often containing metal skeleton materials in the axial direction inside the dense rubber; three-composite seals - composed of two types of dense rubber (one of which is light-colored) and sponge rubber, usually containing metal skeletons and reinforcing fibers inside the dense rubber. Four-composite seals - Shanghai Shenya Sealing Co., Ltd. took the lead in developing and producing composite seals composed of 4 types of rubber materials in China, and a thin layer of protective layer of rubber was coated on the surface of the sponge rubber (foam tube), thereby further improving the service life of the seal.

4. According to the type of material, it can be divided into rubber seals; plastic seals; thermoplastic elastomer seals.

5. According to the surface treatment status, some sealing strips are additionally treated on the surface and can be divided into flocking sealing strips; surface coating sealing strips; fabric-decorated sealing strips.

6. Special function classification, some sealing strips have electronic intelligent functions, such as anti-pinch sealing strips, etc.

The daily maintenance of sealing strips mainly includes the following items. When using car detergent, it is necessary to clean it. After cleaning, apply a layer of highly permeable protective agent, which is more convenient to prevent the aging of the sealing strip.

In addition, the gaps between the sealing strips are very easy to be filled with sand and dust, which will also cause rust. Because of this, it is necessary to use a brush to remove the sand and dust. Rubber sealing strips are required around the car doors.

Sealing strips can improve air tightness, thereby preventing wind and rain from invading the car compartment. Once the sealing strip is damaged due to aging, it will cause the car compartment to leak, increase the wind noise of the car, and leaking rain will easily cause the car body to rust.

It is not difficult to see that for cars, the sealing strip is a very important part, and it must be regularly maintained and inspected. The first thing is to check whether the sealing strip has large cracks or breaks. If the sealing strip is broken or has large cracks, it can be repaired with adhesive.

Especially using adhesives specially used for sealing strips, it is easier to repair large cracks. Of course, if the sealing strip is severely damaged or aged, it is better to replace it with a new one. The method of replacing the sealing strip is not difficult, but if you want to do better, it is best to ask professionals to do it.