The first is that car wax is not resistant to chemicals at all and will wash off in one or two washes, while Ceramic Coatings are resistant to chemicals and will usually withstand a much-prolonged beating when compared to waxes or sealants.

The second reason is resistance to damage. While car wax offers almost no resistance to damage, ceramic coatings usually do. When talking about damage resistance we aren't talking about the car suddenly becoming bulletproof or that you can attack it with a sword medieval-style and expect it to suffer no damage whatsoever. When talking car paint and damage it is usually considered in the form of light to medium scratch resistance, swirl marks and maybe surviving stone chip damage but only at lower speeds really.

No matter the reason and no matter how perfect the paint on your car looks now, it will very soon have swirl marks, scratches and will start to look duller and dirty. The kind of dirty that you cannot simply wash off. There are numerous culprits for the damage your paintwork suffers, but unless it is not driven and in a garage ( for example a showroom car ) it will suffer damage over time. Even a simple rain can damage the paint of your car. All those things add up until your car's paint doesn't look new or fresh anymore but quite the opposite.

To keep the paint on your car looking new or fresh you need to protect it. And Ceramic Coating is the best way to give it that protection for the money you are paying.