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O-ring seals are a common mechanical design for sealing, but they are generally not used in conjunction with sealants.

In the selection of sealing agents, it is generally based on specific application scenarios and needs. Different sealants have different chemical composition and characteristics. For example, some sealants have good high-temperature resistance and are suitable for high-temperature environments; Other sealants have good corrosion resistance and are suitable for corrosive media. In addition, factors such as the viscosity, drying time, and usage temperature of the sealant need to be considered.

If an O-ring seal is needed for sealing, an appropriate amount of lubricating grease is usually applied to the O-ring to reduce friction resistance and improve sealing effect. When selecting lubricating grease, attention should be paid to its viscosity, high temperature resistance, and antioxidant properties to ensure that it can effectively lubricate the O-ring seal and extend its service life.

In summary, O-ring seals are a common and reliable type of sealing element, which are widely used and have various excellent characteristics. However, when using them, it is necessary to pay attention to selecting appropriate sealing agents and lubricating grease to ensure their good sealing effect and service life.