Salam
I would NEVER recommend a Royal Shield Teflon coating to anybody who values their ride. I have had an incredibly awful experience with it. Due to the recommendation of a colleague, I got the job done on two of my cars, a Civic and an Accord, and they were never the same again.
First of all the team does not work professionally - they had come to my house and had taken advantage of my absence by not properly removing the polish off my Accord, and applied the Royal Shield over it, if they ever applied it.
Secondly, some pieces of my cars had been painted by some of the top painters in the market, and the cutting polish the Royal Shield guys used served to scratch off the top layer of the paint, effectively revealing the paint job underneath. Now, when I clean the car and polish it, I can clearly see ridges in the paint while looking at it from an angle in the sunlight.
Thirdly, my Civic, being black, was left with a hazy coating on top of the paint, as if some sort of mist had settled on top of it. I called those people again, finally getting through to them after weeks of calling, and they showed up only to do a worse job than before.
Without going into further details, I would sincerely advise all pakwheelers to abstain from any Teflon or Royal Shield or whatever they call it in the market - you would be paying heavily only to ruin the paintwork on your beloved cars. Keep your cars clean, and polish them every once in a while using high quality polish. Keep your cars in their original condition - the factory paint is best. None of these after-market jobs are good enough - any benefits they claim to bring are all short-lived, with many disadvantages and drawbacks in the long term.
From an extremely disgruntled and dissatisfied Royal Shield customer