One of the main parts affecting the sealing of doors and Windows is the sealing rubber strip, which can play: sealing, fixing glass, buffering impact and other functions, with its own sound insulation, dust, cold, heat preservation and other functions, with excellent tensile strength, elasticity, temperature resistance and aging resistance.

Door and window seals can be divided into three categories according to different uses: door seals used for sealing between the door panel and the door frame; A top for sealing between the door frame and the door panel; Glass seal used to seal between glass and door panel and frame.

Primary characteristic

Modified PVC rubber strip

Prices are relatively low and quality is mixed. Low-end products due to the use of low-quality materials, resulting in poor rubber strip function, simple hardening, displacement, service life becomes shorter. The medium and high-end PVC rubber strips can reach the specification indicators, and the service life is relatively long. However, PVC contains materials that are not conducive to environmental protection, so foreign developed countries and domestic Beijing and coastal cities have eliminated the use of goods restrictions.

Vulcanized EPDM rubber seal strip

The sealing elasticity durability is relatively strong. However, the processing energy consumption is high, and the product cannot be recycled, and it is not an environmentally friendly product proposed by the state. And the cost of using such products is relatively high, so doors and Windows enterprises generally do not use.

Thermoplastic EPDM sealing strip

It is a new type of information based on the introduction of technology from abroad in recent years and domestic independent research and development, which is mainly used for car doors and Windows sealing in the beginning, and for building doors and Windows sealing in recent years. The function is relatively strong, the practical use cost is low, and it meets the requirements of green building materials.

It can be seen that the sealing function of doors and Windows, the quality of the sealing strip is more critical; The thermal insulation function and air tightness of doors and Windows have a great impact on the energy saving and consumption reduction of buildings.