I am sure most of us would have been offered \ advised to go for Teflon coating to protect the paint of our car. Before I go detail into what exactly is Teflon and what they offer, consider this - Automobile detailing is not yet big in India like it is in other countries, but if you ask about Teflon coating in any of the well known international forums, most of the people will draw a blank, but in India, even the aam admi knows about it. Ever wondered why it is immensely popular only in India? Let us take a moment to understand what exactly is Teflon and what it is supposed to do. Teflon is the brand name of DuPont for their PTFE (Polytetrafluoroethylene) which is a synthetic fluoropolymer of tetrafluoroethylene (Link : http://en.wikipedia.org/wiki/Polytetrafluoroethylene) The most well known use for this compound in our life is the non-stick utensils we use for cooking. Water cannot wet this compound. When people offer 'Teflon' most people fall for it thinking that they will get a protective coat over the car paint which will not be wet by water. The true 'Teflon' coating can ONLY be done by DuPont since they are the patent holder for their trademark. If you look at the official DuPont website, you can clearly see that the Teflon coating is done by baking after spraying the compound on the surface. Have you ever seen your car being baked during the so called Teflon coating process? (Links: http://www2.dupont.com/Teflon_Industrial/en_US/products/product_by_type/coatings/index.html and http://www2.dupont.com/Teflon_Industrial/en_US/products/selection_guides/coatings.html) So, what exactly is the 'Teflon' coating done by the showroom guys and other road side 'detailers' ? The answer is - it is nothing but a polish job using a rubbing compound, followed by wax in some cases, and then finished by applying a sealant or glaze. Teflon is one of the biggest marketing scams happening in India, and in India it is mushrooming because people are gullible and customer protection laws are almost non-existent. Now, for a moment, let us say you fell for it. You will be thinking - ok, so i did it, what is the big deal? No big deal if your car is always parked under cover. The more you take the car out, the more the surface will be contaminated by pollutants, and micro scratches. In a non-Teflon or PTFE \polymer coated surface, all you need to do to clear the micro scratch is to use good polish and clean and wax the area, but if you have got this kind of polymer coating done, then casual polishing compounds will not cut the cover. You have to use abrasives with good strength to clean the coating, use a cleaner and go the whole hog to clean even a small scratch. So guys, beware of this scam and stay away from anything which says 'No Waxing for 5 years' etc. PTFE is a PITA and is one of the biggest scams.