In addition to the binder, the pressure-sensitive adhesive is also added with an auxiliary substance such as a tackifier.


   1. The adhesive of the pressure sensitive adhesive has rubber or synthetic resin, and its function is to give the adhesive layer sufficient cohesive strength and adhesion, and the dosage is 30%-50%.


   2. Tackifier. The tackifier has rosin and its derivatives, petroleum resin, etc., and its function is to increase the adhesion of the adhesive layer. Its dosage is 20%-40%.


   3. Plasticizer. The plasticizer used is a plasticizer for general plastic processing, and its function is to increase the fast viscosity of the adhesive layer. The amount is 0-10%.


   4. Anti-aging agent. Generally, rubber and plastic anti-aging agents are available, and the effect is to increase the service life, and the dosage is 0-2%.


   5. Filler. The filler used is a general plastic filler, which functions to increase the cohesive strength of the adhesive layer and reduce the cost, and the dosage is 0-40%. In addition, for some pressure-sensitive adhesives, it is also necessary to add a viscosity modifier, a vulcanizing agent, a solvent, and the like.