In the humid environment of the natural rain, the insulation materials used for plastic injection thermal profiles is two-component polyurethane, it is a non-absorbent material, will not affect the performance of the thermal profiles.

     The insulation strips used for wear insulation aluminum is insulation strips made of PA66GF25 nylon mixed fiberglass, when it is just produced, it is dry, but then it will gradually absorb moisture from the surrounding environment. The abosorbing speed and moisture quantity generally depend on the following factors: 1 ambient temperature. 2. Environmental humidity. 3. Storage time. storage in summer, the temperature and relative humidityis will be relatively high. Even if the short-term storage moisture absorption by the insulation strips will be more than other seasons, Excessive moisture more than 2% will affect wear strips or it blisters when spraying and spreading. Storage will need relatively harsh environment. Another thing is that after it is made of doors and windows, if it suffers rain and if it has been soaked for a long time it will absorb a lot of moisture and cause that many items’ strength performance will decline significantly, even it will affect the insulation.