Inspection Method For Airtightness Of Automotive Sealing Strips

You can find a relatively thin piece of paper, A4 paper is also acceptable. Place it in a sealed position, close the door, and then pull the paper to determine if the seal is good based on the magnitude of the pulling force. Excessive tension indicates that the seal is too tight, which will affect the normal closing of the car door. If it is continued to be used, it will quickly lose its sealing performance due to excessive deformation of the sealing strip. If the tension is too small, it indicates insufficient sealing and needs to be adjusted or improved.