Chemical Strengthening Glass: CS > 600 MPa, DoL 8 – 40 um. Single-piece prototypes to production volumes, quoted from your drawing.
The point of chemical strengthening glass is simple: 4 – 8x bend strength on thin covers. We deposit it by KNO3 salt bath, 380 – 450 C onto the substrate you specify and verify CS > 600 MPa, DoL 8 – 40 um on every lot.
Specifications at a glance
| Treatment | Chemical Strengthening – potassium ion exchange |
|---|---|
| Specification | CS > 600 MPa, DoL 8 – 40 um |
| Deposition / method | KNO3 salt bath, 380 – 450 C |
| 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:
- Sequence matters: all machining happens before chemical strengthening; 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.
Typical applications
chemical strengthening glass shows up across optical sensors (sensor windows, filter caps, lens covers); led packaging (groove covers, phosphor carriers, package windows); aerospace optics (sensor windows, star-tracker flats, radiation-tolerant ports). Background reading on the underlying material science: ScienceDirect: chemically strengthened glass.
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: AR optical windows, special-shaped glass plates, alkali-free display glass.
Frequently asked questions
Do parts ship with inspection data?
Dimensional reports, surface certificates and material certs per melt are available; specify the level on the RFQ.
What does chemical strengthening add?
4 – 8x bend strength on thin covers. Applied by KNO3 salt bath, 380 – 450 C to CS > 600 MPa, DoL 8 – 40 um.
Is there a minimum order for chemical strengthening 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.