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The hardness of the silicone foam strip

by:Kenna     2021-07-11
The hardness of silicone foam strips, the types and uses of door and window sealing strips. Introduction: When we install doors and windows in our life, there will always be certain gaps, which cause the doors and windows to close tightly. 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. Silicone sealing strips can also be glued to materials with smooth surfaces because of its high shock resistance and waterproof performance. According to the composite structure of rubber materials, automotive sealing strips can be divided into pure rubber sealing strips-composed of a single type of rubber; 2. Composite sealing strip-composed of dense rubber and foam sponge rubber, often containing a metal skeleton material in the axial direction inside the dense rubber; three composite sealing strip-composed of two types of dense rubber (one of which is light-colored) and sponge rubber The composition usually contains a metal skeleton and reinforcing fibers inside the compact glue. 6) Classification and function, high-quality sealing strips will improve the overall style and performance of the door in terms of appearance, internal quality, or later use, and covered sealing strips are the modern development trend, and the humanized 'past' Traditional sealing strips have always paid more attention to materials and workmanship, ignoring the attention to humanization in use. With the improvement of people’s living standards, the improvement of housing conditions and people’s high attention to home decoration, the privacy of indoor rooms, More and more people pay attention to the sound insulation and sealing effect. The surface of the silicone rubber sealing strip is very flat. When observing its surface, we will also find that its surface has a very uniform foaming density. Good resilience performance. The choice of seal material determines its long-term softness and elasticity. Through formula adjustment, the softness of the sealant after drying is improved, so that a good sealing layer is formed between the sheet metal and the rubber strip. , The unique high elasticity of butyl rubber ensures that the sealant is easy to peel off from the sheet metal without polluting the sheet metal. 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 The requirements for the material are very high. First of all, it must have strong tensile ability 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 be in line with The door and window profiles match, generally suitable for hanging windows and folding doors and windows. 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 fan. The size of the top can greatly affect The watertight performance of doors and windows will also affect 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 assembly, it will also be when the doors and windows are moving The resistance becomes larger. If the fire specification is too small, or the vertical hair is too low, the door and window are prone to bracket phenomenon, which reduces the sealing performance of the door and window. Generally, there are two types of wool strips that have been siliconized and those that have not been siliconized. Generally, the treated tops will have better results. The quality qualified tops have the following characteristics: there are no obvious defects in the appearance, the surface is straight, the bottom plate and the vertical hair are relatively smooth, there is no bending phenomenon, and there are no pits and other problems on the bottom plate. Size requirements. The hardness of silicone foam strips. Car sealing strips are also something that can often be used in cars. Use better quality products in use, so that they can be used for a longer time. Although there are many on the market You can choose the brand, but you still have to choose according to your actual situation, because different cars are suitable for different sealing strips, so you can choose more to compare above, how to use the sealing strip is worthy of our attention, and we also need us Remember, especially in the hot season, try to use it in a cool place to avoid exposure. Second, at the same time, put the silicone rubber sealing strip in high temperature for a period of time (on the roof or a sunny place), The PVC sealing strip will become very soft in a short time, and the grease on the surface of the sealing strip will be deposited, contaminated with dust, and yellow (oil can easily absorb soil), and the hands will be dirty; the physical properties of the silicone rubber sealing strip There is no change if there is no change. The sealing ring of the pressure cooker used in the home is made of silicone rubber, which uses the high temperature resistance and non-toxic environmental protection properties of silicone rubber. The physical properties of the silicone rubber have no obvious changes in the working environment of 200 ℃. The surface of the silicone rubber sealing strip is very flat. When observing its surface, we will find that its surface has a very uniform foaming density and also has good resilience performance. The choice of sealing material determines In order to have long-term flexibility and elasticity, through formula adjustment, the softness of the sealant after drying is improved, so that a good sealing layer is formed between the sheet metal and the rubber strip. The unique high elasticity of butyl rubber ensures the sealing The glue is easy to peel from the metal sheet without contaminating the sheet metal. 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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