mineral tile ceiling
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GVST
-50 °C to + 150 °C
With minor lip type Used for applications where there are contaminants, such as dust and foreign matter, on the air side face of the oil seal.
As type A with dust lip
Some disadvantages of NBR are poor ozone, sunlight and weather resistance as well as limited high temperature and flame resistance. For higher temperature resistance, a much better material to use is Silicone.
Table 1: The functions of the various components
Despite being a great substitute for more expensive high temperature resistant materials, polyacrylate has a problem of poor water compatibility and cold flexibility.