While buying a new car the dealer suggests Teflon coating your car so that the paint shine lasts longer. I know that Teflon is a substance which does not easily attach to any other substance. So is this treatment for real? or is this a scam?
Did some research on the DuPont site. Found this case study -
Application Description Have you wished that your new vehicle could stay new looking longer with that glossy “wet look” that turns heads and prompts valet attendants to park you up front? Until now, that proud, new ownership experience was too often marred by fine swirl marks from cleaning or surface dulling and clouding from exposure to the elements. Today, Ford Motor Company offers a unique, premium paint job that will resist scratching and mars longer than the finish on any other vehicle in the parking lot.
Seems like something which is expensive and done at the time of manufacturing and not at a later stage.