The sealing strip needs to be replaced under the following conditions:
First, the sealing performance is reduced
1. It is easier to feel air, dust or water vapor entering the room, for example, when the doors and Windows are closed, you can feel the wind or dust entering.
2. The noise of the car increases during driving, and the influence of other noise sources is excluded, which may be the poor sealing performance of the sealing strip of the door, window and other parts.
Two, aging damage
1. The sealing strip cracks, hardens, embrittlements and other aging phenomena, loses elasticity, and cannot be tightly fitted to the sealing part.
2. The sealing strip is partially broken or damaged, such as being scratched or torn by sharp objects.
Three, deformation and distortion
1. Due to long-term use or external extrusion and other reasons, the seal deformation and distortion, can not be restored to the original state, affecting the sealing effect.
2. Improper installation may cause deformation of the sealing strip, and the sealing function cannot be properly performed.
Four, color change
1. The color of the seal is yellow, black or other abnormal color changes, which may be affected by factors such as sunlight, temperature, and chemicals, and the performance may have decreased.
5. Equipment maintenance or transformation
1. After the maintenance or renovation of doors and Windows, cars, etc., the original seal may not be suitable for the new installation size or sealing requirements, and needs to be replaced.
2. When replacing new doors and Windows, electrical appliances and other equipment, it is usually necessary to replace the matching seal to ensure the best sealing effect.
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