Door and window sealing strips are used in plastic doors and windows, aluminum alloy doors and windows, wooden doors and windows and other doors and windows. Plastic door and window sealing strips are generally composed of PVC, modified PVC, ethylene propylene rubber, elastic dense seal, silica gel, etc.

Door and window sealing strips can be divided into three categories: glass sealing strips, door cover sealing strips and wool strips. The glass sealing strip is used for sealing between the glass and the fan and the frame. The door cover sealing strip is mainly used for the sealing between the door panel and the door frame, and the top is used for the sealing between the frame and the fan. In plastic doors and windows, broken bridge aluminum doors and windows, wooden doors and equipment, the sealing tape must have accessories.

Sealing strips play an important role in waterproofing, sealing, and energy saving of plastic doors and windows, broken bridge aluminum doors and windows, and wooden doors and windows. It must have strong tensile strength, excellent elasticity, and good high temperature aging resistance. In order to ensure the fastening of the rubber strip and the profile, the cross-sectional structure standard of the rubber strip must be matched with the plastic door and window profile. Sealing tape is generally used for opening doors and windows, hanging windows, and folding doors and windows. It has the functions of dustproof, insectproof, waterproof, soundproof and sealing.

The equipment part of the top is generally around the sliding window (door) fan, the frame fan or the sealing bridge (wind block) to strengthen the seal between the frame and the fan. The top standard is an important factor that affects the performance of sliding doors and windows and the watertightness, and also an important factor that affects the opening and closing force of doors and windows. The standard of hair is too large or the vertical hair is too high, which not only increases the difficulty of using the equipment, but also increases the movement resistance of doors and windows, especially when the initial resistance is opened and the in-situ resistance is large. If the standard is too small, or the height of the vertical hair is not good, it is easy to go out of the groove, which greatly reduces the sealing performance of doors and windows.

There are two types of tops: siliconized and non-siliconized. The application effect of silicidation is better. The appearance of qualified hair is straight, the chassis and vertical hair are smooth, without bending, and there is no pitting on the chassis, which meets the 0.2mm requirement.