What are graphene coatings made from?
Quick answer: Nano-sheets of graphene (often graphene oxide) that cross-link into a covalently bonded matrix as the coating cures — similar to SiO₂ ceramics but typically stronger and more durable.
Graphene (GO) is a substance which is similar in many ways to the Silicon Dioxide (SiO2) found in ceramic coatings, in as much as the molecules can bond together forming a network of covalent bonds. However, according to the scientists, graphene is even stronger, and may actually be the strongest substance known to man.
Our Siramk graphene coating contains nano-sheets of graphene which form together into a strong matrix when the product cures. The result is a coating which is every bit as good as a ceramic coating, but stronger and more durable.
Graphene coatings are produced using modified forms of graphene, mainly graphene oxide (GO) and reduced graphene oxide (rGO), which are derived from abundant graphite. These materials are blended into liquid carriers, typically ceramic (silica-based) formulations or mixtures that may also include polymers, to form durable protective layers for surfaces such as automotive paint, plastics and trim. Rather than being pure graphene, these coatings are engineered composites in which graphene enhances the base material’s strength, improving resistance to heat, water, and corrosion.
Graphene is a single atomic layer of carbon atoms arranged in a hexagonal lattice. Think of it as ultra-thin, ultra-strong 'sheets' of carbon. In coatings, we often use graphene oxide (GO) or derivatives, where those sheets are functionalised (chemically tweaked) to bond into a network when cured. The nano-sheets interlock, forming a dense matrix that adheres to your car’s clear coat, filling micropores and creating a more flexible, resilient layer.
Because the coating is still extremely thin, often measured in microns or sub-micron scale, you won’t see a thick “glass dome” effect. But that’s not the point. What you do see is deeper clarity, tighter reflections and slicker surfaces, plus better resistance to swirl marks, UV and chemical exposure. Graphene’s strength comes not from bulk, but from its structure and the way it bonds at molecular level.
In practice, graphene coatings can outperform conventional SiO₂ coatings in certain areas. They can be tougher, more flexible, sometimes better against heat or scratch micro-marring. But they’re not magic and failure can still happen if the substrate isn’t prepared correctly, or if you use aggressive polishes or brushes that breach the layer.
What it is
The liquid coating is applied to a clean surface—such as automotive paint, glass, or metal—then cured (either naturally or with heat) to form a thin, durable, hydrophobic layer that protects against water, UV, and corrosion.
Our automotive “graphene coatings” are professionally applied ceramic coatings whose base chemistry (silica/polysilazane) is modified with graphene or graphene oxide nano-platelets. The flakes are dispersed in the coating; they do not form a visible layer, and they don’t replace your clear coat.
How it works
Your installer prepares the paint and applies a recognised system that cures into a tight, microns-thin network. The graphene additive can act as a functional filler, helping slickness and anti-static behaviour and, in some systems, improving resistance to water spotting. Day-to-day results still depend far more on preparation, product quality and controlled curing than on the word “graphene”.
What’s Actually Inside a “Graphene Coating” Bottle
| Component | Function |
|---|---|
| Graphene / rGO | Enhances strength, heat resistance, and chemical stability. |
| Silicon Dioxide (SiO₂) | Forms the main ceramic layer that provides gloss and protection. |
| Binders / Polymers | Improve flexibility, adhesion, and hydrophobic performance. |
| Solvents | Carry and evenly distribute the active ingredients during application. |
| Additives | Optimize bonding, surface spread, and durability. |
Graphene vs “standard” ceramic at a glance
- Chemistry: Both are silica-based ceramics; graphene versions add graphene/graphene-oxide as an additive.
- Thickness: Typical film ≈ 0.5–2 µm – the gloss you see comes from machine polishing before coating.
- Claims you’ll hear: Reduced water spotting and strong slickness. Not scratch-proof, not “a layer of graphite”.
- Real-world outcome: Quality of the system and the installer matters more than the buzzword.
Where it makes sense
- As part of a recognised range your installer trusts, especially if you’re sensitive to spotting and want a slick feel.
- Alongside PPF on high-wear areas if impact resistance is a priority.
- Avoid marketplace products; use accredited professionals and known systems.
What can go wrong – and how to avoid it
- Name-chasing: Picking by “graphene” on the label can miss the point. Judge the system and the installer.
- Overhyped expectations: It won’t fill scratches or create a thick glassy layer.
- Poor preparation: Any coating’s performance drops if defects and contamination aren’t corrected first.
- Mixing brands/layers: Unapproved stacks risk bonding issues. Follow a single recognised system.
Important Note
The term “graphene coating” is often used broadly in marketing. In reality, most commercial graphene coatings are ceramic or hybrid coatings enhanced with small amounts of graphene oxide or reduced graphene oxide. Even in small concentrations, these materials significantly boost the coating’s performance—improving hardness, UV resistance, and water repellency.
Removal and reversibility
Ceramic (including “graphene”) coatings are semi-permanent. They are not stripped by solvents, caustics or acids; significant removal or reset is by abrasion – machine polishing and, if needed, wet-sanding – carried out by a professional.
Best-practice checklist
- Choose a trusted, accredited installer and a recognised coating range.
- Prioritise paint correction – that’s where the deep gloss comes from.
- Follow sensible aftercare so performance stays high for years.
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Written by Danny Argent. Last updated 13/11/2025 14:24
Further Reading
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🍀 Graphene Coating Review
This Range Rover has come back to us because it got a scratch on the door for us to polish out, and it gives us a chance to assess and review the graphene coating.