3. Epoxy resin potting sealant generally has high hardness after curing, strong adhesion to metal parts and most plastics, acid, alkali, corrosion resistance, excellent waterproof and insulation, high confidentiality, is the most widely used and the largest amount of potting sealant type; Its adjustable mobility is good, can penetrate into every corner of electronic components, curing acid and alkali resistance can be good, and there is no bubble. In the construction of the agent can be cured at room temperature can also be cured at medium temperature, can shorten the construction time, curing properties can be adjusted various hardness, high-temperature resistance, heat conduction, flame retardant and so on, but also according to the characteristics of the requirements and adjustment, the application is more flexible.