Borosilicate Glass for Medical Diagnostics – Borosilicate Glass (CTE 3.3 x 10^-6 /K, 360 nm – 2.0 um). No minimum order; DFM review included with every RFQ.
What borosilicate glass for medical diagnostics actually buys from a glass shop: flow cells, slides, microplate bottoms, cuvette windows. The requirement underneath is biocompatible, autoclavable optical components. Borosilicate Glass is the fit here because it offers chemical durability.
The numbers
| Material | Borosilicate Glass (3.3 expansion group per ISO 3585) |
|---|---|
| Thermal expansion (CTE) | 3.3 x 10^-6 /K |
| Service temperature | 450 C continuous |
| Transmission range | 360 nm – 2.0 um |
| Density | 2.23 g/cm3 |
| Knoop hardness | 480 kg/mm2 |
| Refractive index | 1.473 @ 587 nm |
| Stock thickness | 0.50 – 30 mm |
| Maximum blank size | 600 x 400 mm |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Specification advice
Before sending the RFQ, check these against your drawing:
- Material note: sheet stock carries more thickness variation than float wafer stock, so lapping is often the first step.
- 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.
For the complete framework, see the tolerance design guide and the holes and edges design guide.
Process window
Beyond this page, Borosilicate Glass routinely runs through lapping, etching, grinding, laser cutting in our shop – most real parts combine two or three of these steps.
Typical applications
borosilicate glass for medical diagnostics shows up across medical diagnostics (flow cells, slides, microplate bottoms, cuvette windows); scientific instruments (reference flats, cells, prism mounts, stage inserts); laboratory instruments (cuvettes, sight glasses, stir-cell windows). Background reading on the underlying material science: ISO 3585 borosilicate glass 3.3.
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.
Useful companion pages: glass sandblasting, material selection guide, machining tolerance guide.
Frequently asked questions
How does Borosilicate Glass behave under heat?
CTE is 3.3 x 10^-6 /K and continuous service reaches 450 C continuous, which is what drives its use where chemical durability matters.
What do medical diagnostics programs usually order?
Flow cells, slides, microplate bottoms, cuvette windows. Typical spec: USP Class VI compatible processing, no cerium residue.
Is there a minimum order for borosilicate glass for medical diagnostics?
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 August 2026.