Ceramic coating or paint protection film?
They solve different problems, and most cars want both in different places. What each one stops, what neither stops, and where the money goes furthest.
Written by Tom Hartley, who has corrected more of them than he would like to count.
What each one actually is
A ceramic coating is a liquid that cures into a hard, slick layer about two microns thick, chemically bonded to your lacquer. Paint protection film is a sheet of thermoplastic polyurethane, 150 to 200 microns thick, laid over the panel and trimmed to it.
That difference in thickness tells you most of what you need to know. Two microns changes how the surface behaves. Two hundred microns absorbs impact.
What a coating stops
Water clinging and drying into spots. Road film and brake dust bonding to the surface. The car becoming hard to wash, which is the thing that actually puts swirls into paint.
It does not stop stone chips, and anyone who tells you 9H means it does is quoting a pencil test done on a flat panel in a laboratory.
What film stops
Stone chips, scuffs, light scratches and the peppering that motorway miles put into a bonnet. Good film heals its own light marring with heat, so the surface stays sharp for years.
It does not stop dents, and it does not make the car easier to wash on its own.
Why most cars want both
The front end takes impact. Everything else takes weather and washing. So the standard answer on a car worth protecting is film on the bumper, bonnet, wings, mirrors and headlights, and a coating over the whole car including the film.
A coating on top of film is not a waste. It makes the film easier to clean and helps it stay clear.
Where the money goes furthest
If the budget only stretches one way, ask what you are protecting against. A car doing forty motorway miles a day wants film. A car doing school runs and sitting under trees wants a coating.
If the car is new, the preparation is short and both are cheaper than they will ever be again.
