Your Reliable Partner For Custom Special Glass In China
Anti-reflective, anti-glare, anti-fingerprint, conductive, reflective, and filter-coated glass – applied by PVD, magnetron sputtering, or sol-gel to your substrate, specification, and application.
A bare glass surface reflects about 4% of light at each face, picks up fingerprints in seconds, and does nothing to control which wavelengths pass through. Coatings fix that. A thin film – sometimes just a few hundred nanometers thick – can cut reflection to under 0.5%, scatter light to eliminate glare, repel oils so the surface stays clean, make the glass electrically conductive, bounce selected wavelengths back, or pass only a narrow band through. The coating turns a plain pane of glass into a functional optical component.
What you can do with coated glass depends on three things: the coating material, the deposition process, and the substrate underneath. The six coating families below cover the most common functions. Further down the page we explain the processes we use to apply them and what substrates they work on, followed by a specifications table so you can compare performance side by side.
AR coating reduces surface reflection so more light passes through the glass. A single-layer AR brings reflection down from ~4% per face to around 1.5%, and a multi-layer broadband AR can push it below 0.5% across the visible or NIR range. It's used wherever transmission matters — display covers, instrument windows, camera lenses, solar glass, and optical assemblies. The result is a clearer view, less glare, and more energy reaching the detector or cell behind the glass.
AG coating scatters reflected light so the glass doesn't act as a mirror under bright ambient light. Instead of a sharp reflection of the room or the sky, you see a soft, diffuse surface. It's applied by chemical etching or by depositing a textured layer, and it's the standard finish for outdoor displays, kiosks, monitors, and any screen used under strong lighting. Haze level is adjustable — higher haze for harsher light, lower haze for sharper image quality.
AF coating is a thin hydrophobic and oleophobic layer that repels water, oil, and skin grease. Fingerprints still land on the surface, but they wipe off easily instead of smearing, and the glass stays cleaner between cleanings. It's applied on top of AR or AG coatings or directly on bare glass, and it's the standard finish for touchscreens, phone covers, smart home panels, and any glass surface that gets handled.
TCO (transparent conductive oxide) and ITO (indium tin oxide) coatings turn glass into a transparent electrode. The coating passes visible light while conducting electricity across the surface, which is what touchscreens, flat-panel displays, thin-film solar cells, heated glazing, and EMI shielding all rely on. We deposit to a target sheet resistance — the lower the resistance, the better the conductivity, but the trade-off is a slight drop in transmittance.
Tell us the coating you need, the substrate (or let us recommend one), the wavelength range or functional target, and the part size, and we’ll quote it. We coat single pieces for prototyping and production volumes for OEM supply, and we can combine coatings — AR on one face and AF on the other, or ITO on one side with AR on top — in a single part. If you’re not sure which coating suits your application, send us the problem and we’ll recommend the right film and process.
The coating process decides what films you can deposit, how durable and uniform they are, and what substrates they’ll work on. We run three main routes:
PVD and magnetron sputtering deposit hard, dense films by knocking atoms off a target in a vacuum and landing them on the glass. This is the route for ITO, metal mirrors, multi-layer AR stacks, and precision optical filter coatings where thickness control to the nanometer matters. The films are durable and environmentally stable, and we coat flat glass, discs, and pre-cut parts.
Sol-gel dip and spin coating deposits a porous or graded-index film from a liquid precursor and cures it thermally. It’s the standard for single-layer AR on large panels — solar cover glass, display covers, and architectural glass — where full-vacuum deposition isn’t practical at scale. The coating is softer than a sputtered film but handles well once cured.
Spray and roll coating applies functional layers like AF and anti-soiling at high speed on a production line. These are thin, often monomolecular films designed for surface chemistry rather than optics — repelling oils, reducing friction, or resisting fouling.
Substrate preparation matters as much as the coating itself. Any dust, oil, or surface defect under the film shows up as a coating defect on top of it. We clean substrates through ultrasonic wash, plasma activation, or chemical treatment depending on the material. We coat soda-lime float, borosilicate, fused quartz, and optical glass, and we can work with glass that’s already been cut, edged, tempered, or shaped — as long as the surface is clean and flat enough for the process.
| Coating | Method | Transmittance | Reflectance | Other Key Spec | Typical Substrate |
|---|---|---|---|---|---|
| AR Coated Glass | Sol-gel / PVD / Sputtering | >95% to >99% | <1.5% to <0.5% per face | Single-layer or multi-layer AR, broadband or custom wavelength range | Float glass, borosilicate, quartz, optical glass |
| AG Coated Glass | Etching / PVD | >90% | Diffuse reflection | Adjustable haze 5–30%, reduces glare and mirror-like reflection | Float glass, borosilicate |
| AF Coated Glass | Spray / evaporation | No obvious change | No obvious change | Contact angle >110°, oleophobic and easy to clean | Bare glass or glass with AR / AG coating |
| TCO / ITO Coated Glass | Magnetron sputtering | >85% | — | Sheet resistance 5–500 Ω/sq, transparent conductive coating | Float glass, borosilicate, quartz |
Tell us the material, size, thickness, tolerance, quantity, application, and any holes, slots, edges, coating, printing, or polishing requirements. We can manufacture custom glass components from your drawing, CAD file, sketch, or sample.
Yunpu Industrial Zone, Nangang, Huangpu District, Guangzhou
+86-19860070065
sales@specialglass.net
+86 19860070065
+86 19860070065
