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What is the plastic on the inside of the car door?

1 Answers

BrookeDella

07/25/25 7:09am

The plastic on the inside of the car door is called the door sealing strip. The sealing strip is a product that seals something to make it difficult to open, and it serves functions such as shock absorption, waterproofing, sound insulation, heat insulation, dustproofing, and fixation. Car doors require good sealing, dustproofing, waterproofing, and sound insulation. In addition to the reasonable size fit between the door and the car body, the important factor is the sealing strip embedded or pasted on the door frame and the door. Extended content: 1. The sealing strip is a rubber product with a hollow cross-section. Its flexibility allows it to fill gaps of varying sizes. When the gap is large, the compression on the sealing strip is small, and when the gap is small, the compression on the sealing strip is large. The quality of the sealing strip directly affects the sealing performance of the car door. 2. Sealing performance is an important indicator of the overall quality of a car, and the car sealing strip product is one of the important components that determine the quality of this indicator. It is widely used in body parts such as the front and rear windshields, doors, windows, engine compartment, and trunk, filling the gaps between body components. It has functions such as shock absorption, waterproofing, dustproofing, sound insulation, and decoration, providing protection for the driver, passengers, and the entire vehicle.

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