Quick answer: Sandblasting JGS2 Quartz Glass covers JGS2 Quartz Glass (CTE 0.55 x 10^-6 /K, 220 nm – 2.5 um); Sandblasting to mask registration +/-0.1 mm. Prototypes ship in 5-10 working days.
sandblasting jgs2 quartz glass is a materials problem before it is a machining problem. JGS2 Quartz Glass has visible and near-ir clarity and a Knoop hardness of 500 kg/mm2, so the sandblasting recipe – feeds, coolant, tooling – differs from what works on ordinary float glass. The line runs automated cabinets with alumina media and photoresist masks and holds mask registration +/-0.1 mm.
Key parameters
| Material | JGS2 Quartz Glass (Optical grade, bubble class 1) |
|---|---|
| Thermal expansion (CTE) | 0.55 x 10^-6 /K |
| Service temperature | 1,100 C continuous |
| Transmission range | 220 nm – 2.5 um |
| Density | 2.20 g/cm3 |
| Knoop hardness | 500 kg/mm2 |
| Refractive index | 1.458 @ 587 nm |
| Stock thickness | 0.20 – 40 mm |
| Maximum blank size | 300 mm diameter |
| Process | Sandblasting |
| Working tolerance | mask registration +/-0.1 mm |
| Minimum feature | 1 mm masked window |
| Surface finish | uniform matte, gloss 4 – 8 GU |
| Thickness window | 0.7 – 25 mm |
| Edge condition | not applicable |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Getting the drawing right
The shop-floor rules that matter here:
- Material note: thicker blanks need stress-relief annealing before tight-flatness grinding.
- Process boundary: blasted faces lose roughly 30% bend strength; safety-critical faces get a post-etch.
- 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.
Capabilities and limits
The core strength of Sandblasting is uniform diffusing texture and masked logos or windows at panel scale. The honest limit: blasted faces lose roughly 30% bend strength; safety-critical faces get a post-etch. Both belong on the drawing before quoting, not after.
One material, many routes: on JGS2 Quartz Glass we also quote drilling, dicing, edge grinding, laser cutting, and multi-step drawings are the norm rather than the exception.
Where these parts end up
The recurring buyers of sandblasting jgs2 quartz glass: semiconductor equipment (view ports, wafer carriers, plasma rings, chamber windows); optical sensors (sensor windows, filter caps, lens covers); ccd inspection equipment (CCD cover plates, reference grids, stage glass). Background reading on the underlying material science: ScienceDirect: fused quartz.
Dimensions still moving? Configure this part live in the 3D builder below, or open the full custom glass machining 3D builder to start from a blank canvas.
Useful companion pages: glass sandblasting, fused silica wafers 2-12 inch, surface quality guide.
Frequently asked questions
What tolerances are achievable on JGS2 Quartz Glass parts?
Ground features hold +/-0.01 mm and lapped thickness reaches +/-0.003 mm. Thicker blanks need stress-relief annealing before tight-flatness grinding.
What thickness range do you stock for JGS2 Quartz Glass?
Standard stock spans 0.20 – 40 mm, with blanks up to 300 mm diameter. Other formats are sourced per order.
How does JGS2 Quartz Glass behave under heat?
CTE is 0.55 x 10^-6 /K and continuous service reaches 1,100 C continuous, which is what drives its use where visible and near-IR clarity matters.
What accuracy does sandblasting hold?
Mask registration +/-0.1 mm with minimum features of 1 mm masked window. Blasted faces lose roughly 30% bend strength; safety-critical faces get a post-etch.
Specifications on this page were last reviewed by our engineering team in July 2026.