Coupling agents are compounds at both ends of the molecule that contain different groups of properties that react with inorganic and organic matter. The coupling is coupled to the adhesive by a chemical bond. The coupling agent plays an important role in bridging. It can significantly improve the bonding strength, water resistance, heat resistance and moisture and heat aging properties. It is commonly used as organo silane coupling agent.

溶剂一般是易挥发性的有机溶剂。溶剂的作用是溶解树脂或橡胶，使之有一定粘度；稀释体系能降低粘度，降低表面张力，增加湿润性，提高流变性和流匀胶层。选择溶剂要综合考虑其溶解性、毒性、挥发速度及经济性。

Solvents are usually volatile organic solvents. The function of the solvent is to dissolve the resin or rubber to make it a certain viscosity; the dilution system can reduce the viscosity, reduce the surface tension, increase the wettability, improve the rheology and the flow of the rubber layer. The solubility, toxicity, volatilization speed and economy of solvent should be considered comprehensively.