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Take you closer to the car sealing strip

  • 发布时间: 2023-07-04

Automobile sealing strips are important sealing components on the vehicle body, mainly made of materials such as polyvinyl chloride (PVC), ethylene propylene rubber (EPDM), synthetic rubber modified polypropylene (PP-EPDM), etc. They are made by extrusion molding or injection molding methods. Mainly used on door frames, windows, engine hood, and luggage compartment lid, it plays a role in sealing, sound insulation, wind resistance, dust prevention, and waterproofing.

 

The sealing strip of the car door mainly refers to the door sealing strip and the door frame sealing strip. The door sealing strip and door frame sealing strip should not only ensure sealing performance, but also withstand the impact force when closing the door. Therefore, they should have both elasticity and toughness, mainly composed of a dense rubber matrix and a sponge rubber foam tube. The dense adhesive contains a metal skeleton, which plays a role in strengthening the shaping and fixation of the adhesive strip. Sponge rubber foam tubes are soft and elastic, playing a role in compression deformation, pressure relief, and rebound. This type of sealant is pasted or embedded on the car door and matched with the body sealing strip to increase the sealing between the car door and the body.

 

 

 

The sealing strip of the engine hood is composed of pure sponge rubber foam tube or a combination of sponge rubber foam tube and dense adhesive, used for sealing the engine hood and the front of the vehicle body. The sealing strip of the back door is composed of a dense rubber matrix containing a skeleton and a sponge rubber foam tube, which can withstand a certain amount of impact force to ensure the sealing of the rear cover when closed.

 

 

 

 

The Car glass seal is composed of the window glass guide channel and the water cut inside and outside the window. The sealing strip of the window glass guide groove is composed of dense adhesive with different hardness, embedded into the vehicle body to ensure accurate size matching and achieve sealing and sound insulation effects. Some of the lip edges of the guide groove have a suede surface, which can reduce the friction noise between the glass and the guide groove when the glass moves up and down. The internal and external water cutting is composed of pure rubber strips or pure rubber strips combined with plastic parts. It has a suede surface, which not only reduces friction with glass, but also plays a decorative role.

 

 

 

The sealing strip of a car is crucial for its sealing performance and can affect its sound insulation. After a car has been used for a long time, due to the natural attenuation characteristics of rubber, the sealing of the doors will decrease, which may cause rainwater to enter the car, slow cooling of the air conditioning, dust entering the door hinges and locks, and other problems. Air leakage from the doors can also occur, causing an increase in wind noise and bringing various inconveniences and impacts to driving and riding. So, what should we pay attention to when it comes to the maintenance and replacement of sealing strips?

 

1. Regularly inspect the sealing strip, mainly to timely check whether it has hardened, deteriorated, damaged, cracked or broken. If so, it is recommended to directly go to the official 4S store to replace the original factory sealing strip.

 

 

 

2. Regularly use car detergent to clean the sealing strip and apply a layer of high permeability protective agent to prevent the sealing strip from aging.

 

3. The gaps in the sealing strip are easily filled with sand and dust, which accelerates the aging of the sealing strip. Therefore, it is necessary to regularly remove the sand and dust on the sealing strip.

 

 

 

4. Be cautious about third-party sealing strips for online shopping. Automobile manufacturers have conducted extensive tests on sealing strips in various aspects such as aging, corrosion, odor, high temperature, and high cold during the automotive research and development process, meeting the requirements of long-term driving, multiple door opening and closing, and various environmental uses before handing them over to users. Third party products have not been tested and certified, and should be purchased with caution.

 
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