Graphene or ceramic, honestly

A ceramic coating is a liquid polymer, silica based, that bonds to the clear coat and cures into a hard transparent layer a few microns thick. It behaves like a very thin sheet of glass sitting on your paint.

A graphene coating is, in almost every product on the market, the same silica chemistry with graphene oxide added to it. That is the part the marketing tends to skip. You are not choosing between two unrelated technologies. You are choosing between a coating and a coating with an additive that changes how the cured layer behaves.

Which is why the honest comparison comes down to degree, not to a step change in technology.

Search this question and look at who the results belong to. Most of the detailed graphene versus ceramic comparisons online are published by companies that manufacture and sell graphene coatings.

That does not make them wrong. Manufacturers frequently know their chemistry better than anyone. It does mean the conclusion was decided before the article was written, and it explains why so many of those comparisons arrive at the same answer.

The claim to be most careful with

You will read that graphene is a single layer of carbon atoms while ceramic is silicon dioxide, as though you are choosing between two unrelated technologies.

The first half describes pure graphene in a laboratory. It does not describe what is in the bottle. A graphene coating is silica chemistry, the same base as a ceramic coating, with graphene oxide added. The additive changes how the cured layer behaves. It does not replace the underlying technology, and framing it as a different category is a marketing decision rather than a chemical one.

“More DIY friendly”

This appears constantly in graphene comparisons, and it is worth understanding why. It is true that many consumer graphene products are formulated to be forgiving to apply, and that is genuinely useful if you are doing it yourself.

It is also a sales point for a company selling directly to you. The professional-grade coatings in either chemistry are not DIY friendly, which is precisely why manufacturers restrict them to trained installers.

Why we have no side to take

We fit both. Gtechniq and System X on the ceramic side, Ethos and Magnum Obsidian S1+ on the graphene side, with the accreditation to issue the long guarantees on either.

Whichever we recommend, we sell you the same amount of work, because the correction underneath is the same job. That is the only reason this page can afford to tell you the difference is smaller than you have been led to believe.

“200 times stronger than steel”

True of a single sheet of pure graphene in a laboratory. Not true of a few percent of graphene oxide suspended in a coating and spread across a bonnet. The figure is real physics doing marketing work it was never meant to do.

“9H hardness”

You will see 9H on both ceramic and graphene products, including ones we fit. It refers to the pencil hardness scale, where 9H is simply the hardest graphite pencil used in the test. It is not the Mohs scale, where 9 would put your paint somewhere near sapphire. A 9H coating resists the marring a wash mitt causes. It does not resist a key.

“Scratch proof”

Neither is. A coating is measured in microns. It handles chemical attack, UV and washing. It will not stop a stone chip, a shopping trolley or a car park scrape, and no additive changes that. If impact protection is what you are after, that is a film product and a different conversation.

Two differences show up often enough that owners notice them, and both matter more in Sydney than they would in a drier climate.

Water spotting. Graphene coatings are consistently better at resisting the mineral rings left when water dries on the panel instead of being dried off. If your car lives outside and gets rained on and then baked, this is the difference you will actually see. It is the single most common reason we steer someone toward graphene.

Heat dissipation. Graphene spreads heat across the panel instead of letting it concentrate in one spot. On a dark car parked in summer sun, less concentrated heat means less thermal stress on the surface, and water on a cooler panel is less inclined to bake on in the first place. The two benefits are related.

Manufacturers also tend to rate graphene products for longer, and warranties often run further. Some of that is genuine chemistry and some is confidence in a newer product, and it is difficult to separate the two from the outside.

Gloss depth. On dark, properly corrected paint, a top-tier ceramic still produces the deepest wet look. Graphene is close and on some cars indistinguishable, but if maximum depth on black paint is the goal, ceramic is the safer choice.

Track record. Ceramic coatings have a decade of field data across every kind of contamination, climate and neglectful owner. Graphene is newer. Its chemical resistance rates well in testing, but there is simply less real-world history behind it. On a car you intend to keep for a decade, that counts for something.

The flagship products. The very hardest, longest-cure coatings, the ones released only to trained installers, are still predominantly ceramic. Gtechniq Crystal Serum Ultra is the clearest example.

If you take one thing from this page, take this. The gap between a well-prepared ceramic coating and a well-prepared graphene coating is small. The gap between a well-prepared coating and a badly prepared one is enormous.

Both are transparent, and both cure over whatever is underneath. Apply either to swirled paint and you have sealed those swirls in for the life of the coating, which on a good product is years. Skip the panel wipe that strips polishing oils and the coating bonds to residue instead of to paint, which is why some coatings fail in months while the same product on the next car lasts years.

A cheap graphene coating over uncorrected paint will always lose to a mid-tier ceramic over corrected paint. Choose the detailer before you choose the chemistry.

How correction stages work →

We are accredited for Gtechniq, System X, Ethos Graphene and Magnum. More about how the studio works. Having both chemistries on the shelf, and the authorisation to issue the long guarantees on either, means the recommendation follows the car rather than the stock.

Broadly, we lean graphene when the car lives outside, when it is dark and gets rained on, or when water spotting is the thing that annoys you. We lean ceramic when the car is garaged, when maximum gloss on dark paint is the goal, or when you want the longest proven track record on a car you plan to keep.

Plenty of cars would be well served by either, and in those cases we will say so instead of inventing a reason to prefer the dearer one.

Compare the four coatings we fit →