As a key material for energy-saving and safe doors and windows, sealing strips play an important role in water tightness, air tightness and energy saving. The performance changes of sealing strips in various aging environments have a very important impact on the sealing performance of doors and windows. In actual use, the quality of sealing strips is a key material for energy-saving and safe doors and windows. Sealing strips play an important role in doors and windows, air tightness and energy saving.

The performance changes of sealing strips in various aging environments have a very important impact on the sealing performance of doors and windows. In actual use, the quality problems of building door and window projects are mainly manifested in brittleness, elasticity and loss of sealing function; or exposed to the sun, hair sticks to windows and glass, pollutes doors and windows, affects the sealing function and beauty of doors and windows; or shrinks and loses in a short time.

These are all due to the poor aging resistance of rubber strips. After long-term exposure to the sun, the rubber strips become hard after aging, lose elasticity, and fall off easily. Not only is the sealing poor, but it also causes safety hazards such as loose glass. Sealing failures can have a very adverse effect on the performance of windows, including reducing the air tightness, water tightness and thermal insulation performance of windows. The sealing strip must remain flexible throughout the life of the window and form an integral part with the window.