1. Block the water outlet: After installing the sealing strip, part of the water outlet will be covered. When it rains, the rainwater entering the car door cannot be discharged, which will lead to the rust of the car door metal and even lead to water seepage in the car.

2. Rubber hose aging: the adhesive is not firm. After a period of use, the sealing strip will fall off and even stick to the wagon, which will affect the beauty of the car.

3, affect the appearance: after installing the sealing strip, the door will become very conspicuous, if the door is not big, it will look big and wide, thus affecting the appearance.

4. Poor sound insulation effect: Many people think that installing sealing strips can reduce noise, but it does not help much.