There are a few different types of film that can be used for hydro dipping. The most common type is a vinyl film. This is a durable, water-resistant film that can be used for a variety of applications. Another type of film that can be used for hydro dipping is an acrylic film. This type of film is also water-resistant and durable, but it is less likely to fade over time than vinyl film. Finally, there are also latex films that can be used for hydro dipping. These films are less durable than the other two types, but they are more flexible and offer a wider range of colors. Ultimately, the choice of which film to use for hydro dipping will depend on the specific needs of the project.