When it comes to window tinting, the type of adhesive used is an important consideration. There are two main types of adhesives used in window tint: dry adhesive and sticky (pressure-sensitive) adhesive.
Dry Adhesive
Dry adhesives, also known as water-activated adhesives (WAA), are typically used for window tint on flat glass surfaces, such as residential and commercial buildings. These adhesives are not initially sticky to the touch. Instead, they are activated by spraying a solution of soap and water onto the film, which allows the tint to be easily positioned and repositioned on the glass before being squeegeed into place.
Sticky (Pressure-Sensitive) Adhesive
Sticky or pressure-sensitive (PS) adhesives are more commonly used for automotive window tint. These adhesives have a tacky feel when the protective liner is removed. The sticky nature of the adhesive helps it adhere securely to the curved surfaces of car windows. During installation, the tint film is sprayed with a soap and water solution and then heat-shrunk to fit the shape of the window. Pressure is also applied with a squeegee to ensure maximum adhesion.
The choice between dry and sticky adhesives depends on the application and the type of glass being tinted. Dry adhesives are generally preferred for flat glass, while sticky adhesives are better suited for curved automotive windows.