The main technical indicators of the electrolytic tin plate internal coatings are: viscosity, surface tension, drying, elasticity, impact strength, adhesion, gloss and so on.
① The electrolytic tin plate internal coating has viscosity. Viscosity plays an important role in internal coating. Too high viscosity is not conducive to roller coating; too low viscosity results in insufficient film thickness.
② Electrolytic tin plated steel coating has surface tension. The surface tension of the electrolytic tin plated steel internal coating depends on the physical properties of the coating itself. The surface tension of the coating is small and the leveling property is good, which is also conducive to the implementation of the coating, otherwise it is not conducive to the coating.
③ Electrolytic tin plate coatings are elasticity. Elasticity is also called flexibility, and electrolytic tin plated steel gold lacquer has higher requirements for elasticity, otherwise it will affect the adhesion fastness of the coating after the metal can is formed.
④ The electrolytic tin plate internal coating has adhesion. It refers to the mutual bonding ability between the coating and the surface of the tinplate, and sufficient adhesion is the most basic requirement of the electrolytic tin plate internal coatings.
⑤ Electrolytic tin plate coatings are gloss. The gloss of the electrolytic tin plate internal coating depends on the smoothness of the surface of the tank. The smooth surface is high gloss, and the rough surface is low gloss.