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Is the silicone foam strip waterproof?

by:Kenna     2021-07-10
Is the silicone foam strip waterproof? According to the name of the installation part (component), it includes: engine cover sealing strip (HOOD), which can be divided into front, side and rear; door frame sealing strip (DOORSEAL); front and rear wind Window sealing strip (WINDOWSCREEN); side window sealing strip (SIDEWINDOWSEALING); sunroof sealing strip (SUNROOFSEALING); door first road sealing strip (PRIMARYDOORSEAL); window guide groove sealing strip (GLASSRUNCHANNEL); inside and outside strips (water cut) (WAISTLINE); Trunk seal (TRUNKSEAL); anti-noise seal (ANTI-NOISE); dustproof strip (ANTI-DUST), etc. Automobile product rubber formula and its preparation method and process Background technology: At present, the low temperature performance of rubber products used in automobiles on the market is generally around -25°C, but the rubber parts on automobiles cannot withstand cold air in a harsh climate. The airflow caused the product life to be greatly reduced. The performance of rubber products used in automobiles directly affects personal safety. For example, the recall of some of the cars sold by Toyota in the past few years caused serious reputational consequences. Therefore, all automobile manufacturers need a long-term stable performance. Adequately safe rubber products. Is the silicone foam strip waterproof? 3, among them, the weather sealing strip has a hollow sponge tube, which has a better temperature and humidity maintenance function. Common weather sealing strips include door frame sealing strips, luggage compartment sealing strips, engine box cover strips, etc. Commonly used general sealing strips include front and rear windshield sealing strips and corner window sealing strips, inner and outer strips, etc. 4, 5, classified by material types, can be divided into rubber sealing strips; plastic sealing strips; thermoplastic elastomer sealing strips, special functional classification , Some sealing strips have electronic intelligence functions, such as anti-pinch sealing strips. The product is environmentally friendly, easy to construct, and has good anti-seepage, anti-leakage and water-stop effects. 2) Corrosion resistance, aging resistance, high and low temperature resistance +80℃~-45℃, no flow, no deformation, no embrittlement, long service life, thermoplastic EPDM rubber sealing strip The sealing strip is a new material developed on the basis of imported technology and domestic independent research and development in recent years. It is mainly used for automotive door and window sealing strips. In recent years, it has been used for building door and window sealing. Its outstanding advantages are: ①The performance and service life are equivalent to those of vulcanized EPDM rubber sealing strips. Fourth, the impact resistance is good. Many people want to use foam sealing strips as cushioning materials, because the impact resistance of this product is very good, the physiological stability of the rubber sealing strips is very good, and the resistance to deformation is also very good. It is strong, not only resistant to ozone but also resistant to ultraviolet rays, so this product has been widely used, and it is inseparable from many places such as medical diversion, electronics, wire and cable, etc. , This product also has a very good advantage, that is, long service life. Technical realization factors: The technical problem to be solved by the present invention is to provide a rubber formula for automobile products and a preparation method thereof, which has good low-temperature performance, can withstand the attack of cold air in a local environment with relatively bad weather, and guarantees good performance. Ensure personal safety. Technical realization factors: The technical problem to be solved by the present invention is to provide a rubber formula for automobile products and a preparation method thereof, which has good low-temperature performance, can withstand the attack of cold air in a local environment with relatively bad weather, and guarantees good performance. Ensure personal safety. Is the silicone foam strip waterproof? Of course, rubber sealing strips can also be used in medical applications. No matter which field this product is used in, the effect is very good. It can meet everyone's needs and bring you Great help. The use effect of rubber sealing strips is ideal, and the color and specifications can be customized according to customer needs. The packaging requirements are also installed according to the needs of customers, so choosing this product can give you Everyone brings great convenience. The sealing strip is a very important part in doors and windows. It can not only ensure the watertightness of the doors and windows, but also reduce the sound insulation. At the same time, it also has the function of protection from external forces. However, due to the usual sun exposure, it will cause aging, shrinkage or deformation. Check and look at the specific gravity. If it is of good quality, the weight will be lighter. If it is a defective product, the weight will be heavier. This is because regular manufacturers use calcium carbonate as a filler and some manufacturers use talcum powder to increase the weight of the product. It is easy to distinguish good products from inferior products by looking at the specific gravity when buying. There is no obvious change in the physical properties of silicone rubber at -50°C. Fifth, depending on the specific gravity, how many meters can be produced per kilogram, the PVC sealing strip with heavy calcium added, you can stretch it back and forth several times by hand, and a small amount of white powder will appear on the surface. The density of PVC sealing strips should be 1,4-1,6. Silicone rubber sealing strips should be filled with nano-scale silica as a filling and reinforcing effect. The texture is light and the density ratio is between 1,1-1,25. The material rate is 20% higher than that of PVC sealing strips.
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