FTO Coating Soda-Lime Glass – Soda-Lime Glass (CTE 9.0 x 10^-6 /K, 360 nm – 2.0 um); 7 – 15 ohm/sq, stable to 600 C. No minimum order; DFM review included with every RFQ.
The point of fto coating soda-lime glass is simple: heat-tolerant conductive layer for cells and heaters. We deposit it by spray pyrolysis on float line onto Soda-Lime Glass and verify 7 – 15 ohm/sq, stable to 600 C on every lot.
The numbers
| Material | Soda-Lime Glass (Float per ASTM C1036, low-iron option) |
|---|---|
| Thermal expansion (CTE) | 9.0 x 10^-6 /K |
| Service temperature | 350 C continuous |
| Transmission range | 360 nm – 2.0 um |
| Density | 2.50 g/cm3 |
| Knoop hardness | 585 kg/mm2 |
| Refractive index | 1.52 @ 587 nm |
| Stock thickness | 0.40 – 19 mm |
| Maximum blank size | 1,000 x 800 mm |
| Treatment | FTO Coating – fluorine-doped tin oxide |
| Specification | 7 – 15 ohm/sq, stable to 600 C |
| Deposition / method | spray pyrolysis on float line |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Design guidance
Three items decide most of the cost and lead time on this work:
- Material note: higher CTE means edge chips propagate under thermal load, so edge finishing quality drives reliability.
- Sequence matters: all machining happens before fto coating; post-coating rework is not economical.
- 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
Beyond this page, Soda-Lime Glass routinely runs through cnc machining, laser cutting, dicing, drilling in our shop – most real parts combine two or three of these steps.
Typical applications
Orders for fto coating soda-lime glass cluster in led packaging (groove covers, phosphor carriers, package windows); industrial displays (touch covers, gauge windows, printed bezels). Background reading on the underlying material science: ASTM C1036 flat glass standard.
The fastest route to a quote is geometry: use the 3D builder below, draw a dimensioned 2D drawing from it, or open the site-wide custom glass machining 3D + 2D builder for fully custom parts.
Related reading on this site: FTO conductive glass, custom FTO glass, ITO coated glass.
Common questions
Is there a minimum order for fto coating soda-lime 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.
Do parts ship with inspection data?
Dimensional reports, surface certificates and material certs per melt are available; specify the level on the RFQ.
What tolerances are achievable on Soda-Lime Glass parts?
Ground features hold +/-0.01 mm and lapped thickness reaches +/-0.003 mm. Higher CTE means edge chips propagate under thermal load, so edge finishing quality drives reliability.
Specifications on this page were last reviewed by our engineering team in September 2026.