A seal is a device or component that is used to fill the gap between two mating surfaces. It isolates the system from an external environment; thus, prevent leakage from them. Chemical transportation seals are used in tank trucks, rail tankers, and ISO tankers to prevent the media from leakage and contamination. They are generally used in manlid, foot valve, ball valve, butterfly valve, airline valve, pressure-vacuum valve, pumps, and flanges of a chemical tanker.