Why has the tape on this window shrunk? Why is there dust on the inside of this window? We only came into contact with the seal because it was faulty.

The adhesive strips on doors and Windows are indescribable, some doors and Windows even have no adhesive strips, but it has a great impact on the performance of doors and Windows, it affects the sealing performance of doors and Windows, it affects the appearance of doors and Windows, it affects the energy-saving effect of doors and Windows, it affects the opening of hardware, it affects the sound insulation of doors and Windows, so its role is very great. The basic function of the seal strip is the sealing ability. If the sealing ability is poor, it will affect other performance, such as energy saving, opening collocation, appearance, sound insulation, etc.

Now the seals on doors and Windows are basically EPDM rubber strips, chemical code abbreviated as EPDM, a rubber copolymer. Its advantages are a wide range of temperature resistance, corrosion resistance, good aging resistance. A wide range of temperature resistance, doors and Windows in winter drink summer so big temperature difference without much change, will not affect the performance of doors and Windows. Good corrosion resistance, so that the rubber strip itself will not affect the corrosive gas in the air, so it will not affect the sealing performance. It has good aging resistance, indicating that many years of sunlight and ultraviolet light have little influence on it.

The rubber strip on doors and Windows generally has three seals from outside to inside, and the seal on the outside and inside is basically partially disconnected, so the real complete seal is a seal, that is, the middle large sealing rubber strip. Ep3 sealing rubber strip can make foam co-extrusion form, in the door and window play a key sealing role in the middle of the big rubber strip is generally made into foam co-extrusion way, to ensure the amount of sealing compression and lap amount to further enhance the sealing effect.