Kenna rubber seal strip suppliers & specialist,focus on EPDM, PVC, TPE, TPO, NR, CR, NBR, TPR, TPV, EVA, SIR, PP, PC, PMMA and other raw materials developed products.

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Which silicone sealant is good

by:Kenna     2021-07-01
Which is better for silicone sealant strips? The heat resistance, cold resistance, insulation, conductivity and flame retardancy are all very good. It can be used at 100-120℃ for a long time, and it can also be used at 140-150℃. It maintains effective physical properties for a long period of time, and can withstand high temperatures of 230-260°C in a short period of time. It can delay the effect of sudden accidents in urban buildings; coupled with the use of special formulas, EPDM -50℃ to 150℃ feels similar, which creates high efficiency work performance for production site installation. Types and uses of door and window sealing strips Introduction: When we install doors and windows in our lives, there will always be a fixed gap, which leads to tightly closed doors and windows. The door and window sealing strips are 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. 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 very high requirements for materials. First, 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. At the same time, it is very simple in construction, without complicated procedures, and this is also a must-have for an EPDM sealing strip. Many people do not know enough about the product such as EPDM sealing strip, let alone the product. Features and advantages. First of all, the weather resistance of weather resistance products is very good. They can be used in severe cold and hot environments, dry and humid environments for a long time, and they can also have good corrosion resistance. The advantage is that the service life of the product can be prolonged. It plays a key role in various electrical cabinets. The main performance of EPDM products: non-toxic, environmentally friendly, resistant to aging and high temperature, stable performance, and can maintain good performance in summer and winter, taking into account The process performance of commonly used rubber materials sometimes requires the use of combined rubber, such as the combined use of natural rubber (NR) with CR and styrene-butadiene rubber (SBR) or the combined use of polyethylene (PE), EPDM and NR rubber to improve resistance. Ozone. The top 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 largely 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 the assembly is completed, the resistance of the doors and windows will increase when they move. If the fire size is too small, or the vertical hair is too low, the door and window are prone to bracket phenomenon, which reduces the airtightness of the door and window. 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 hairs 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. It is made of soft and elastic, non-toxic and odorless after special processing, and can withstand 200℃ high temperature, high pressure and repeated cooking. It is used for insulation and insulation of electrical products, internal pipes of drinking water systems, industrial refrigeration equipment, and gas The internal connection of appliances, the sealing of machinery, lamps and other products, and the performance of the sealing strips greatly affect the air-tightness, water-tightness, heat loss and other important performance indicators of the doors and windows of the building, as well as the firmness of the doors and windows. According to the sealing characteristics, automobile sealing strips can be divided into weather sealing strips (WEATHERSTRIP) and general sealing strips (SEALING). Among them, weather sealing strips have hollow sponge foam tubes, which have better temperature and humidity maintenance function and are maintained in normal The process includes the following items. First, the detergent must be cleaned. After the cleaning is not done, a layer of protective agent must be applied. This can prevent aging and prevent dust. Humanization 'In the past, the tradition has always paid more attention to materials and workmanship, ignoring the attention to humanization in use. What are the performance advantages of coated seals? 1. Compression deformation test: 50% compression rate at 70°C continues to compress 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 Variety
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