black large tpu ppf films scratch testing car paint protection film gravelometer test machine mo-620b

ideal for displaying this machine in your shop and show how ppf will protect the painted to your customers. the gravelometer device is intended to demonstrate the resistance of ppf materials to road debris. you can check the performance of the film by attaching the film to the provided iron plate and checking the condition of the iron plate after artificially inflicting damage. rotating parts of the machine imitate the effect of road debris on a surface coated with the paint protection film, thus its protective feature will become clearly visible.syi