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Silicone foam strip

by:Kenna     2021-05-15
Types and uses of silicone foam strip door and window sealing strips Introduction: When we install doors and windows in our lives, there will always be certain gaps, which will cause the doors and windows to close tightly. The role of door and window sealing strips is used to eliminate these gaps. However, there are many types of door and window sealing strips, and their uses are also different. I have compiled some relevant information about the types of door and window sealing strips for everyone here. Door and window sealing strips can be divided into major categories in use: glass sealing strips, door leaf and door cover sealing strips and wool strips. The glass sealing strip is used to seal the gap between the glass leaf and the frame. The door leaf sealing strip is used to seal the gap between the door panel and the door frame, and the wool strip is mainly used to seal the gap between the frame and the door. It is said that in the installation process of various doors and windows, the sealing strip is indispensable. It is divided into self-adhesive type and card slot type. It is used in different doors and windows. It is more convenient and feasible in operation and installation. What is the performance advantage of the coated sealing strip? 1. Compression deformation test: 50% compression rate at 70℃ continuous compression 22 hours, deformation rate ≤10%2, compression force test, under 25% compression rate, apply a force of 15N/100mm, compression rate ≤10N3, temperature range test: from -40℃ to 90℃, the sealing performance is not obvious Change 4. Thermal conductivity K value test: K value ≤ 0 at 0°C. Energy-saving doors and windows are roughly composed of profiles, hardware, glass and EPDM door and window sealing strips, as well as several major modules of processing technology. The sealing strips are relatively low cost due to their proportion and are affected by some traditional concepts that do not pay attention to energy-saving standards for doors and windows. , Has been ignored by many door and window manufacturers, but we can’t help but admit that the sealing strip plays a vital role in the door and window system. What important role can EPDM sealing strip play in the door and window system? . The heat resistance and cold resistance, insulation and conductivity, as well as flame retardancy are very good. It can be used at 100-120℃ for a long time, and it can remain effective for a long period of time at 140-150℃. Its physical properties can withstand high temperatures of 230-260℃ in a short period of time, and it can delay the effect of sudden accidents in urban buildings; coupled with the use of special formulas, EPDM rubber feels similar at -50℃ to 150℃ , This has created a high-efficiency work performance for the production site installation. The sealing strip plays a role of sealing and waterproofing in plastic steel doors and windows, aluminum alloy doors and windows, and wooden doors and windows. Sealing strips have high requirements for materials. First of all, they must have strong stretchability and elasticity, as well as good temperature resistance and aging resistance. At the same time, in order to ensure the close contact between the sealing strip and the profile, the cross-sectional structure of the sealing strip must match the profile of the door and window, which is generally suitable for hanging windows and folding doors and windows. The wool strip is generally used to install on the sash of the push-type door and window to seal the gap between the frame and the sash. The specifications of the tops can greatly affect the watertight performance of doors and windows, as well as the opening and closing of doors and windows. If the size of the top is too large, or the vertical hair is too high, it will be very difficult to assemble, and after it is assembled, the resistance of doors and windows will increase when they move. If the fire size is too small, or the vertical hair is too low, brackets are prone to occur in doors and windows, which reduces the airtightness of doors and windows. There are generally two types of tops that have undergone silicification treatment and those that have not been silicified. Generally, the treatment effect will be better. Quality tops have the following characteristics: there are no obvious defects in appearance, the surface is straight, the bottom plate and vertical hair are relatively smooth, there is no bending phenomenon, and there are no pits and other problems on the bottom plate, and it meets the size requirements. Silicone foam strips can be used at 100-120℃ for a long time, and can maintain effective physical properties for a long period of time at 140-150℃, and can withstand high temperatures of 230-260℃ in a short time, which can cause sudden accidents in urban buildings. , It can play a delay effect; coupled with the use of special formula, EPDM rubber feels similar at -50℃ to 150℃, which creates a high efficiency work performance for installation on the production site. 3. Because EPDM has Excellent ozone resistance, it is also known as 'crack-free rubber'. It is especially used in various urban buildings with different atmospheric indexes and completely exposed to the air. It will show the superiority of its products; 4. Anti-ultraviolet rays The radiation of high-rise buildings provides environmental protection for residents of high-rise buildings; it can withstand voltages of 60~150KV, corona resistance, electric crack resistance, and arc resistance, which are also very good. Talking about the important role of epdm for doors and windows. With the further development of science and technology and the continuous improvement of living standards, and the call of an energy-saving harmonious society that has been advocated, we all know that doors and windows are the eyes of the building, and its energy loss can be It accounts for 40% of the total energy loss of buildings, which has attracted enough attention, especially in large cities like the capital Beijing. In 2004, the heat transfer coefficient of doors and windows (indices for heat preservation and energy saving) was used as a mandatory acceptance index. Provinces, cities and regions across the country have also attracted great attention and implementation, and energy-saving doors and windows have become the mainstream of building doors and windows. All of the above characteristics are also the advantages of foam sealing strips. Through understanding, we can find that the reason why this product is popular in the market is because the product has many characteristics and advantages. The temperature in winter is very low. If a product such as a car seal is damaged, it is easy for air-conditioning to enter the car, and wind noise is also prone to appear. This sound feels like the door is not closed tightly, which will affect the comfort of the ride. . The main function of doors and windows is to seal, how to strengthen the seal, then the sealing strip plays a very critical role.
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