G'day Guys,
A) Before deciding to get RoyalShield (Teflon Based Coating. Link: http://www.twipakistan.com/automotivecare.html ), One of my indian collegue has forwarded me an informative thread about Teflon coating questions in India (answered by U.S paint experts and normal users).
It is a pretty long debate but a car enthusiast (curious about RoyalShield/Teflon based) will surly love to read it. The rates mentioned here are around 5 years old.
Teflon coating for a car/automobile [India] Jun 25, 2002.
Link: http://www.finishing.com/152/28.shtml
B) Teflon was invented and its Patent was registered by Charles Nixon (Redington Beach, FL, US). It was published in 08/18/1981.
It Claims:-
Disclosed is a paint sealant and method of applying the same to painted surfaces wherein a T.F.E. Teflon in a dispersion carrier is mixed with a fine abrasive in a dispersion carrier and heat is applied by buffing to burn off the dispersion carriers so as to produce a durable protective coating of Teflon. A second hard coating is applied to cover the Teflon.
Link: http://www.freepatentsonline.com/4284668.html
[Please be sure that there are many patents which do deliver what they offer and there are many, which do not]
C) There are many Teflon products currently present in the overseas market.
AUTOBARN U.S/Aus currently offers DUPONT Teflon cheap products
http://www.autobarn.net/dutese.html
5StarShine offers it here
http://www.5starshine.com/
D) The RoyalShield has "straight teflon" or it is teflon based?
E) Is it' polarized (+ and -) or not? and do you must have to re-apply it after certain time?
On a lighter note, autophile it sounds as RoyalShield belongs to you 
Cheerios,
Abbas Naqvi.
P.S: The above information is just posted to enhance the teflon related information on PakWheels.