Sealant refers to a sealing material that deforms with the shape of the sealing surface, is not easy to flow, and has a certain degree of adhesion. It is an adhesive used to fill the gap between configurations and provide a sealing effect. It has functions such as leakage prevention, waterproofing, vibration prevention, sound insulation, and heat insulation. It is usually made of asphalt, natural resin or synthetic resin, natural rubber or synthetic rubber and other dry or non dry viscous substances as the base material, together with inert fillers such as talcum powder, clay, carbon black, titanium dioxide and asbestos, and then added with plasticizer, solvent, curing agent, accelerator, etc. It can be divided into three categories: elastic sealant, liquid sealing gasket, and sealing putty. Widely used for sealing in construction, transportation, electronic instruments and components
