History
Ceramic coatings didn't start life on cars. The chemistry came out of industrial and aerospace work, where the priority was durability and resistance to heat, chemicals and wear, not gloss. This section looks at how those early formulations were adapted for modern automotive clear coats, and why today's ceramic coatings do what they do. It also draws on something most detailing businesses can't offer: more than forty years of watching paint protection products come, go, and quietly fail.
From factory floor to car bodywork
The core ingredient in most automotive coatings is SiO₂ (silicon dioxide), often carried in a siloxane matrix. That chemistry was in use long before anyone thought of applying it to paintwork: on turbine blades, cookware, and industrial machinery where a thin, hard, bonded layer had to survive conditions that would wreck a polymer sealant or a conventional wax. Glass-like silica films were used to protect surfaces from oxidation and abrasion in settings where reapplying a sacrificial wax every few weeks was simply not an option.
Bringing that formulation onto car paint meant solving different problems: adhesion to a modern clear coat, a workable cure time, a finish that looked good rather than just performed well, and something a detailer could actually apply without industrial equipment. A coating designed for a turbine blade doesn't care about gloss, water behaviour or whether it flashes off before you can level it. On a car, all three matter. Early automotive coatings were stiff, unforgiving and easy to ruin: a high spot you missed during levelling could cure into a permanent streak that only wet-sanding would remove.
Later generations traded some of that raw hardness for hydrophobic behaviour, gloss and ease of use, which is what most customers are really paying for. The chemistry moved from pure SiO₂ toward blended systems: silica for hardness, modified siloxanes for flexibility and self-levelling, and surface additives that produce the high contact angle and sheeting that people associate with a freshly coated car. The trade-off is honest and worth understanding: a coating tuned to be forgiving in application and dramatic in water behaviour is rarely the hardest film you could put on a car, and the hardest film is rarely the one a single detailer can apply cleanly in a working bay.
Understanding that progression matters because it explains what a coating can and cannot realistically do. Marketing language like "9H" and "fills scratches" comes from this history being half-told. The pencil-hardness number lifted off the industrial spec sheet doesn't mean what the advert implies, and a coating measured in microns can't fill a scratch you can catch a fingernail in. The articles below fill in the rest.
Forty years of coatings: a workshop perspective
Gary, New Again's co-founder, was applying paint protection products as a self-employed detailer from the early 1980s; long before the industry used the word "ceramic" for anything connected to cars. The products he worked with then were polymer sealants: Bigin (later rebranded as Supagard), Total Protection by AutoClenz, and a product called Lacroe, which became JewelUltra Diamondbrite. These weren't coatings in any meaningful sense; they were wax-adjacent sealants, sold largely on the back of dealership relationships and applied by hand. The sales pitch was usually stronger than the product: a hand-applied film that gave a few months of beading and a showroom shine on handover day, then needed an annual top-up the customer often forgot to book.
Through the 1990s and into the 2000s the range of products expanded. Toughgard, Toughseal and A-Glaze all had their moment; Diamondbrite had a long run through the dealer channel. The underlying chemistry hadn't changed much, though. Protection still meant a polymer film that would last a season or two and needed renewing. Longevity claims were creative: a "lifetime" guarantee that depended on the customer returning for paid annual inspections is a marketing device, not a measure of how long the film actually lasts on the panel.
The Swedish trip and the first sight of glass
The shift came when Danny travelled to Sweden and encountered Ditec, a Scandinavian coating brand with a noticeably different approach. An attempt to bring it to the UK as a franchise didn't come together, but it changed what we were looking for; it was the first time we'd seen paint protection treated as a proper bonded system rather than a glorified wax. In around 2006 we had a demonstration from Gtechniq; the product was, genuinely, like glass: hard, optically clear, unlike anything we'd seen applied to a car. We turned it down: difficult to apply, expensive, and not yet practical for a working workshop. But the category had arrived, and once you've seen a true coating cure on a panel you stop thinking of sealants the same way.
MaxProtect, Fireball and where we settled
By 2010 the picture had shifted. The formulation behind that 2006 demo had continued on a separate path under the name MaxProtect; we also evaluated Gen-3. We went with MaxProtect. It remained a demanding product in application, and working with the supplier proved difficult, so we eventually moved to Fireball: a Korean brand whose products were more practical without sacrificing performance. When Autosmart released their own coating, that was hard to pass up. A period of supply disruption from Fireball led us to bring SiRamik's range into our line-up. Fireball later returned with a new range too, and both remain part of what we apply today.
That settled range isn't a single product but a graded set, chosen for different jobs and budgets. The current Fireball line we apply runs from the harder, longer-life flagship coatings down through gloss-led and easier-maintenance options, and we match the coating to the car and the owner rather than upselling everyone to the top of the range. Mike, who runs the coating side, will reach for the flagship on a car someone plans to keep for years and a more sensible mid-range product on a daily driver where the owner wants protection without paying for show-car hardness they'll never need.
Why a coating's history shows up in the bay
The progression from sealant to coating isn't just trivia; it changes how the product behaves under your hands. Tom, our operations manager, points new detailers at the same lesson every time: the older sealants were almost impossible to get wrong because they did so little, while a real coating punishes a rushed application. Flash time, panel temperature and humidity all matter now in a way they never did with a hand-applied glaze. We keep the bay between roughly 18 and 24⁰C for coating work, because a film that levels beautifully at 20⁰C will flash before you've finished the panel at 30⁰C, leaving high spots that have to be polished back and reapplied.
That sensitivity is the direct inheritance of the industrial chemistry. A coating bonds to the clear coat and cures into a hard, thin layer (typically a couple of microns) and once it has cured there is no wiping it off and starting again. A sealant sat on top and could be stripped with a panel wipe; a coating is part of the surface. Knowing which one you're holding, and why it behaves the way it does, is the difference between a finish that lasts years and an expensive correction job.
It also explains why we're sceptical of certain claims. A product that promises the gloss and water behaviour of a top coating, the forgiving application of a spray sealant, and a hardness number borrowed from a different test entirely is promising three things that pull against each other in the chemistry. The history tells you they can't all be true at once.
Where to go next
- Why are ceramic coatings popular?: what's driving customer demand and how much of it is marketing.
- When did ceramic coatings become popular?: the timeline from industrial use to mainstream detailing.
- Where are ceramic coatings made?: the handful of countries that actually formulate them, and why origin matters less than you'd think.
Related
- Glossary: full A-Z of car-care terms, including the entries covering ceramic coatings, graphene and polymer sealants.
- Long-term ceramic coating solutions: how these formulations are used on real customer cars.