The automobile sealing strip has the function of filling various gaps and gaps between the components of the vehicle body, and has the functions of shock absorption, water prevention, dust prevention, sound insulation, decoration, etc., to improve the comfort of the driving experience and protect the vehicle body.

    Overview: General owners experience that their car is in a certain state of operation, such as high-speed driving, gravel roads, downtown areas, and feel strong noise, then the most likely problem is the sealing performance of the car body. There are many ways to solve the problem, and the sealing strip is one of the cost-effective solutions. The car sealing strip is generally configured at the time of delivery, and the quality is uneven, After a period of use, there will be premature aging, deterioration and disappearance of sealing performance. At this time, replacing a new sealing strip will greatly improve the noise in the car. Automobile sealing strip is a very useful product to solve the noise problem. 

Classification:

Classified by the name of the installation part (component) of the sealing strip

The engine cover sealing strip can also be divided into front, side wall and rear; Door frame sealing strip; Front and rear windshield sealing strips; Side window sealing strip; Sunroof sealing strip; Sealing strip of door header; Window guide channel sealing strip; Inner and outer side strips; Trunk sealing strip; Anti-noise sealing strip; Dust strips, etc.

Classification by section shape:

It can be divided into solid core products (round, square, flat section shape), hollow products and metal rubber composite products. Among them, metal rubber composite sealing strip accounts for more than 60%. Section design is very important for rubber sealing strip. First of all, the shape and size of the sealing lip should be designed. The sealing lip on both sides should contact the glass from both sides of the window glass with the same and appropriate force. The length and thickness of the lip should be appropriate. Too thick or too long will make the glass lifting resistance too large, and too thin or too short will cause the glass not to be well guided and sealed, resulting in vibration, noise and rain leakage; The second is the design of the shape and size of the bottom of the section. There are bulges on the section of the window steel channel, which are used to assemble the guide channel. Therefore, the corresponding structure should be designed at the bottom of the guide channel section, which is not only easy to install, but also can use the elasticity of the sealing strip itself to attach to the steel guide channel to prevent it from falling out; Finally, the shape and size of the outer lap. In order to improve the appearance, the outer finish of the guide groove should be closely fitted with the vehicle body.

Classification according to sealing characteristics:

It can be divided into weather sealing strip and general sealing strip. Among them, the weather sealing strip has a hollow foam tube, which has a good temperature and humidity retention function. Common weather sealing strips include door frame sealing strip, trunk sealing strip, engine case cover strip, etc. Common sealing strips include front and rear windshield sealing strips, corner window sealing strips, inner and outer side strips, etc.

Classification according to compound structure of rubber:

It can be divided into pure rubber sealing strips - composed of a single rubber type; II. Composite sealing strip - composed of dense rubber and foam sponge rubber, often containing metal skeleton material in the axial direction inside the dense rubber; Three-composite sealing strip - composed of two kinds of dense adhesive (one of which is light color) and sponge adhesive, usually containing metal skeleton and reinforcing fiber inside the dense adhesive. Four composite sealing strips - Shanghai Shenya Seals Co., Ltd. has taken the lead in developing and producing composite sealing strips composed of four kinds of rubber materials in China. A thin protective layer of rubber is coated on the surface of the rubber (foam tube), thus further improving the service life of the seal.

 Classification by material type:

It can be divided into rubber sealing strips; Plastic sealing strip; Thermoplastic elastomer sealing strip.

Classification by surface treatment status:

The surface of some sealing strips can be divided into flocking sealing strips after additional treatment; Surface coating sealing strip; Special function classification of sealing strip with fabric trim:

Some sealing strips have electronic intelligence functions, such as anti-pinch sealing strips.

characteristic:

In the low temperature resistance test at - 40 ℃, the sealant strip remained firm, not brittle, and remained soft and with good adhesion, showing excellent cold resistance. However, at 120 ℃, the weatherability of the sealing strip is still good, the elastic property is maintained, and the shape and function are not affected.

The selection of sealing material determines its permanent softness and elasticity. Through formula adjustment, the softness of the sealant after drying is improved to form a good sealing layer between the sheet metal and the rubber strip. The unique high elasticity of butyl rubber ensures that the sealant is easy to peel off from the metal sheet metal without polluting the sheet metal.

The automobile sealing strip is mainly made of EPDM rubber with good elasticity and compression deformation resistance, aging resistance, ozone, chemical action, wide use temperature range (- 40 ℃~+120 ℃), which is foamed and tightly compounded. It contains a unique metal clamp and tongue-shaped buckle, which is durable and easy to install.