Door and Window Sealing Strips

The core function of door and window sealing strips is to fill the gaps between
the door and window frame and sash, and between the glass and the profile. They
also need to be adaptable to conditions such as frequent opening and closing of
doors and windows, changes in outdoor temperature and humidity, and exposure to
sun and rain.
Tolerance to extreme temperature fluctuations: Resistant to -40℃~60℃ in
frigid northern regions and -20℃~80℃ in hot southern regions. No brittleness
at low temperatures (embrittlement temperature ≤ -50℃) and no softening or
deformation at high temperatures (heat distortion temperature ≥ 70℃). Elastic
recovery rate ≥ 80% after long-term use (over 10 years).
Excellent anti-aging performance: Resistant to ultraviolet (UV) radiation,
ozone (vehicle exhaust/atmospheric ozone), and rainwater erosion. After 5000
hours of outdoor exposure, standard EPDM strips retain ≥70% of their tensile
strength, with no significant cracking or discoloration (as required by
national standard GB/T 12002-2016).
Glass sealing strip: Embedded in the glass groove to prevent glass movement and
rainwater seepage.

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