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As we all know, metals are prone to corrosion by strong acids and bases, which leads to rusting; by applying a ceramic glaze to the metal surface, we can prevent rusting. Enameled equipment is made by applying a ceramic glaze with a high silicon content to the metal surface, and then firing it at 950°C to ensure that the glaze adheres tightly to the surface of the metal substrate. The enameled layer on the metal surface prevents the formation of an oxide layer when the metal is heated, and its corrosion-resistant properties enable it to resist the erosion of various liquids, thus protecting the metal surface. Glass-lined equipment boasts excellent corrosion resistance; it is highly resistant to various concentrations of inorganic acids, organic acids, organic solvents, and weak bases. However, it is not suitable for use with strong bases, hydrofluoric acid, and fluoride-containing media, as well as phosphoric acid at temperatures above 180°C and concentrations above 30%. After being applied to the metal surface through enamel firing, it retains excellent properties such as high hardness, heat resistance, wear resistance, and insulation under specific conditions. These characteristics exhibited by the ceramic glaze applied to the metal substrate enable our enamel-coated equipment to be used in a wider range of applications. Glass-lined equipment combines the dual advantages of glass-like chemical stability and metal strength. Therefore, it is widely applicable in numerous processes in production and research across industries such as chemicals, pharmaceuticals, pesticides, organic synthesis, petroleum, and food manufacturing, including operations like evaporation, concentration, synthesis, extraction, polymerization, saponification, mineralization, chlorination, nitration, and more. Glass-lined equipment suffers from deformation of the sealing surfaces due to high-temperature firing, resulting in poor sealing reliability and frequent leakage. Some users believe that a small amount of leakage is fine as long as it does not affect production; this is incorrect. When corrosive substances in the equipment leak out, they gradually corrode the metal from the outer edge of the flange inward, causing the enamel layer to peel off gradually. Over time, the enamel layer on the sealing surface of the leak site will completely peel off, the metal substrate of the flange will suffer severe corrosion, resulting in defects and pits, and the equipment will become unusable. Furthermore, when corrosive gases leak from the equipment and come into contact with cold air, they condense on the outer surface of the flange, thereby causing corrosion as well. In particular, acidic corrosive media will penetrate from the outer edge of the flange toward deeper layers, causing large-scale detachment of the ceramic layer on the flange sealing surface. By the time the equipment begins to leak heavily and requires repair, its flanges have become so severely corroded that they can no longer be repaired. It can be seen that the sealing solutions for glass-lined equipment need to possess good compensatory properties, a high degree of rebound, and low compressive stress required to achieve sealing. Here, we recommend our own developed Fle*ngSeal industrial expanded polytetrafluoroethylene sealing tape, which is a porous expanded tape manufactured using a special process. The Fle*ngSeal sealing material is soft, compressible, and easy to shape; it can form a good fit over minor cracks and defects in the sealing surface even under low pressure, thereby effectively protecting brittle structural materials and ensuring proper sealing. For non-metallic components such as glass, ceramics, graphite, and plastics, Fle*ngSeal® sealing materials can also achieve excellent sealing results. It can better compensate for errors caused by machining defects, rigid deformation, misalignment during installation, etc., balance uneven pre-tensioning forces, and effectively address leakage issues of various gases and liquids under complex conditions. Disclaimer: The content contained herein is sourced from public sources such as the Internet and WeChat official accounts. We maintain a neutral stance regarding the views expressed in it; these views do not represent those of this official account. All articles are provided for reference and informational purposes only. If there is any infringement, please contact us to have it removed.