The core function of door and window insulation strips
Block heat conduction
The insulation strip is connected to the inner and outer sides of the aluminum alloy profile through low thermal conductivity materials (such as PA66+25% glass fiber), forming a "broken bridge" structure, effectively reducing indoor and outdoor heat transfer, and improving the insulation performance of doors and windows.
Enhance structural strength
As the "backbone" of doors and windows, insulation strips need to withstand external forces such as wind pressure and loads, and their strength directly affects the deformation resistance and service life of doors and windows.
Improve sealing performance
High quality insulation strips closely adhere to the profiles, and when combined with sealing strips, can enhance the water and air tightness of doors and windows, preventing rainwater infiltration and air leakage.
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