Automobile sealing strip is one of the important parts of automobiles. It is widely used in doors, windows, body, seats, sunroofs, engine boxes and trunks. It has waterproof, sealing, sound insulation, dustproof, antifreeze, shock absorption, The important role of heat preservation and energy saving. There are many ways to classify automobile seals. The industry usually classifies them according to the name of the installation part (component), the type of material, the number of composite materials, the working characteristics and other factors. Among them, the classification according to the name of the installation part (component) is the most commonly used. Way.

1. Door frame seal

The foam sponge sealing strip is connected with the "U"-shaped clamping part as a whole. There are 3 teeth on the inner side of the clamping part, and a "U"-shaped metal skeleton is fixed in the clamping part. The end face is connected with a section of sponge rubber lip, the foam sponge sealing strip is coated with an antifreeze layer, and the surface of some clamping parts is connected with a layer of flocking layer or flannel. The door frame sealing strip must not only ensure the tightness, but also bear the impact force when the door is closed. Therefore, it must have both elasticity and toughness. It is mainly composed of a dense rubber matrix and a sponge rubber foam tube. The compact adhesive contains a metal skeleton, which strengthens the shaping and fixing of the adhesive strip. The sponge rubber foam tube is soft and elastic, and plays the function of deformation under pressure and rebound after pressure relief. In addition, the lip part of some sealing strips is made of colored glue or pasted with fabric, and the color tone is beautiful and decorative.

2. Door seal

The door sealing strip is mainly used for fixing, dustproof and sealing of the door. Play the role of waterproof, dustproof, sound insulation, temperature insulation, shock absorption and decoration. The door seal is also called the door seal. If there are both door strips and door frame strips, the door frame strips are called secondary sealing strips.

There are two structures of the door headway sealing strip, one is a full sponge rubber foam tube, and the other is composed of a dense rubber matrix and a sponge rubber. The sealant is pasted or inlaid on the car door, and cooperates with the door frame sealing strip to increase the sealing effect between the car door and the car body. The door headway sealing strip is not used in every car, for example, some economical cars do not have it, which is mainly from the perspective of cost saving.

3. Window glass guide groove sealing strip

The window glass guide groove seal is installed in the door steel groove around the four-door lift glass. As a guide for the window glass to rise and fall, the window glass guide groove seal is composed of dense adhesives of different hardness (now using TPV material also More, has become a trend), inlaid into the body to ensure the accuracy of size matching, to achieve the role of sealing, anti-leakage and sound insulation. The lip of the sealing strip is also pasted with a flocking surface, which can reduce the sliding friction between the glass and the rubber strip when the glass moves up and down, and can also reduce noise. In addition, this part has a large exposed area and is one of the important appearance parts .

4. Luggage seal

The trunk seal is also known as the back door seal and the tailgate seal.

5. Front and rear windshield seals

The front and rear windshield sealing strips generally only play a decorative role, not a sealing role. The glass and the body are mainly bonded by glass glue.

6. Engine hood (engine cover seal), engine compartment seal

The sealing strip of the engine cover is composed of pure sponge rubber tube or sponge rubber bubble tube and dense glue, which is used for sealing the engine cover and the front part of the vehicle body. The sealing strip of the trunk lid or the back door is composed of a dense rubber matrix with a skeleton and a sponge rubber foam tube, which can withstand a certain impact force and ensure the sealing when the back cover is closed.

7. Internal and external water blocking seals

The water blocking seal is also called the outer water cutting strip and the outer pressure strip.

8. Skylight sealing strip

The car sunroof is installed on the roof and can be moved, which can effectively circulate the air in the car, increase the entry of fresh air, and bring healthy and comfortable enjoyment to the car owner. At the same time, car windows can also widen the field of vision, and are also often used for shooting needs of mobile photography. Car sunroofs can be roughly divided into: external sliding type, built-in type, internal hidden-everything type, panoramic type and curtain type. Mainly installed on commercial SUVs, cars and other models.

9. Corner window seal

Corner window seals are static seals, which are generally inactive after assembly.

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