Why does the coating come off hot dogs dipped in batter for corn dogs?

The coating does not come off hot dogs dipped in batter for corn dogs. In fact, the batter sticks to the hot dog because of a phenomenon called adhesion. Adhesion is the attraction of two different surfaces to each other. In the case of hot dogs and batter, the adhesion is caused by the strong electrostatic force of attraction between the positively charged proteins on the surface of the hot dog and the negatively charged batter particles. This strong force of attraction between the hot dog and the batter ensures that the batter sticks to the hot dog during the frying process, forming the crispy and golden coating that is characteristic of corn dogs.