Resist materials rigorous requirements

Other Uses, Not all of the possible applications of SAS have been discussed here. A number of other applications are listed in alphabetical order in Table X. In the future, precipitated silicas may be used to a considerable extent for low-temperature insulations (e.g., for refrigerators). A moisture-resistant film with added silica has outstanding heat resistance and does not need any fluorinated hydrocarbons. SAS will likely be used as raw materials for pure silica glass for applications with rigorous requirements. The purity and uniformity of such SAS will have a great influence on the final properties. New applications will undoubtedly follow. 

Big ships are related to building with respect to their dimensions and construction. Their fire protection concepts are therefore rather similar to those of buildings. For ocean liners, the Inter-Governmental Maritime Consultative Organization (IMCO) issued the regulations International Convention for the Safety of Life at Sea (SOLAS). Chapter II-2 covers the fire protection prescriptions. As for buildings, ships are also divided into fire sectors and fire resistance is codified for particular structural components. Very rigorous requirements are made for the materials used. 

The ability of a flexible vinyl film to withstand the rigors of environmental exposure has been the subject of many studies, both reported and unreported. The extreme complexity of a vinyl system stems not only from the number of individual components necessary from a processing and performance point of view, but it is factorially compounded by the number of choices between components and their relative resistance to the environment. In many cases, the ability to formulate is not totally compatible with the performance requirement, and a compromise must be struck that will provide the optimum conformity to the most critical specifications. The development of unique products or additives to existing commercial materials to broaden formulating latitude has been and is a major stimulus to the growth of the vinyl industry. 

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