PPF Installation Gel, specifically in a 5-liter size, is a large quantity of solution designed for professional installers applying paint protection film (PPF) to vehicles. This gel helps with the application process by allowing for smoother movement of the film during placement. It likely creates a slightly tacky surface between the film and the car’s paint, allowing for adjustments before final adhesion. The 5-liter size suggests it’s intended for high-volume use or workshops that handle numerous PPF installations.