Ceramic Coatings: Tested, Measured, Explained

Almost everything written about ceramic coatings online shares one problem: the durability numbers are asserted rather than measured. Manufacturers publish figures with no method behind them, affiliate sites repeat those figures, and forum threads contradict both. We have seen the same product described as lasting eight weeks and nine years by two sources that both claim to have tested it.

So we are measuring instead. Every coating we discuss goes onto a prepped test panel with a documented method, gets photographed on a fixed schedule, and has its water behaviour logged over months rather than judged once on the day of application.

What a coating can and cannot do

A coating is a sacrificial layer that sits on top of your clear coat. It makes the surface harder to contaminate, easier to clean, and more reflective. It reduces how much dirt bonds to paint and how long water sits on it.

What it does not do is repair damage. A coating cannot replace clear coat that has been polished away, and it cannot remove a scratch you can catch a fingernail in. It can make light swirl marks less visible by forming a flatter surface that reflects light in one direction instead of scattering it, which is a real optical effect and not the same thing as repair.

Where graphene fits

Graphene is the newest marketing term in the category and the least substantiated. Nearly every source treats it as a layer of language over the same silica chemistry, and the one specific, falsifiable claim we could find in the wild — that graphene coatings resist dust through an anti-static effect — came from a brand selling one.

We build a graphene product ourselves, which is exactly why we ran a controlled test on that question rather than repeating the claim.

Who makes what

The category is smaller than it looks. A lot of bottles come from a handful of formulators, some brands sell only through certified installers, and one company’s professional coating and its consumer spray can share a name while sharing very little else.

Our brand index records who owns each label, how you can actually buy it, and whether the company publishes a safety data sheet, an ingredient breakdown or any test method at all behind its durability claim. It also collects every case we found where a brand’s own published figures contradict each other — which is the fastest way to tell an asserted number from a measured one.