Quick answer: Edge Grinding ITO Coated Glass covers ITO Coated Glass (CTE substrate dependent, >85% visible @ 100 ohm/sq); Edge Grinding to chamfer +/-0.05 mm. Prototypes ship in 5-10 working days.
The combination of ITO Coated Glass and Edge Grinding comes up constantly in RFQs for a reason – the material offers laser-patternable electrode layouts, and Edge Grinding is the right way to get accurate geometry into it. Expect chamfer +/-0.05 mm and ground C or R profile, polish option.
The numbers
| Material | ITO Coated Glass (ITO on soda-lime, borosilicate or alkali-free) |
|---|---|
| Thermal expansion (CTE) | substrate dependent |
| Service temperature | 350 C (coating stable) |
| Transmission range | >85% visible @ 100 ohm/sq |
| Density | 2.23 – 2.51 g/cm3 |
| Knoop hardness | substrate value |
| Refractive index | 1.9 – 2.1 (ITO film) |
| Stock thickness | 0.30 – 3.0 mm substrates |
| Maximum blank size | 400 x 300 mm |
| Process | Edge Grinding |
| Working tolerance | chamfer +/-0.05 mm |
| Minimum feature | 0.1 mm chamfer leg |
| Surface finish | ground C or R profile, polish option |
| Thickness window | 0.1 – 25 mm |
| Edge condition | C-chamfer, R-round, pencil or OG profile |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
DFM notes from the shop floor
The shop-floor rules that matter here:
- Material note: machining happens film-side-aware: scribing, edge deletion and contact zones are defined before cutting.
- Process boundary: profiles below 0.1 mm leg length are lapped by hand and priced per edge.
- Over-specification is the quiet budget killer: a 20/10 scratch-dig face costs roughly three times an 80/50 face, so grade each surface individually.
The full rules live in our tolerance design guide and holes and edges design guide.
What the process holds
Edge Grinding earns its place through edge strength – a finished chamfer roughly doubles the bend strength of a cut edge. Its boundary condition – profiles below 0.1 mm leg length are lapped by hand and priced per edge – is the first thing our DFM review checks.
Beyond this page, ITO Coated Glass routinely runs through dicing, coring, laser cutting, drilling in our shop – most real parts combine two or three of these steps.
Who orders this
Orders for edge grinding ito coated glass cluster in led packaging (groove covers, phosphor carriers, package windows); medical diagnostics (flow cells, slides, microplate bottoms, cuvette windows); industrial displays (touch covers, gauge windows, printed bezels). Background reading on the underlying material science: ScienceDirect: indium tin oxide.
Dimensions still moving? Configure this part live in the 3D + 2D builder below, or open the full custom glass machining 3D + 2D builder to start from a blank canvas.
For adjacent specifications, see custom ITO glass, holes and edges design guide, glass sandblasting.
Buyer questions, answered
What equipment runs the edge grinding work?
CNC edge grinders with profiled diamond wheels.
Is there a minimum order for edge grinding ito coated glass?
No. Single prototypes are accepted, and pricing steps down at 10, 100 and 1,000 pieces.
How fast can prototypes ship?
Machined prototypes ship in 5 – 10 working days. Coated or bonded parts add 1 – 2 weeks depending on queue slots.
What files do you need for a quote?
A dimensioned PDF plus DXF or STEP geometry. If only a sketch exists, our drawing review service formalizes it before quoting.
Specifications on this page were last reviewed by our engineering team in September 2026.