index / materials / glass
Glass
also: drinkware, mirrors
Glass frosts under a CO2 beam and does not cut. Diode machines need a coating, and fiber light passes through clear glass.
Board
YES x2 two or more makers say yesNO x2 two or more say noMAKERS SPLIT makers contradict each other1 SOURCE one maker page only, not confirmedNO STATEMENT nothing publishedIF = yes only under a stated condition
| Laser type | Engrave or mark | Cut |
|---|---|---|
| Diode (blue, about 450 to 455 nm) | NO x2 +1 IF | NO STATEMENT |
| CO2 (10,600 nm) | YES x2 +1 IF | NO x2 |
| Fiber (1064 nm) | NO x2 | NO STATEMENT |
Run glass through the matcher to add a cut thickness.
What each maker says
Diode, engrave or mark NO x2 +1 IF
Glass (with coating)
xTool, Fiber vs CO2 vs diode laser guide (blog), read Nov 5, 2026Clear/Transparent (diode): Passes right through
OMTech, Diode vs CO2 vs fiber lasers guide (blog), read Nov 5, 2026Glowforge Spark ... is not compatible with glass
Glowforge, Craft Series tech specs (Aura, Spark), read Nov 5, 2026
CO2, engrave or mark YES x2 +1 IF
Engraving: Acrylic Wood Plywood MDF Bamboo Leather Paper Rubber Silicone Glass Stone Ceramics Plated/coated metal Fabric Cork
xTool, Fiber vs CO2 vs diode laser guide (blog), read Nov 5, 2026It also frosts glass cleanly
OMTech, Diode vs CO2 vs fiber lasers guide (blog), read Nov 5, 2026CO2 lasers perform well on glass engraving ... However, it's limited to opaque glass and translucent glass
Monport, CO2, fiber and diode material compatibility guide (blog), read Nov 5, 2026
CO2, cut NO x2
Glass, stone, and ceramic engrave (frost) on a CO2 laser but don't cut cleanly, because thermal stress cracks them.
Boss Laser, Materials and safety FAQ, read Nov 5, 2026Glass (etch, no cut)
Full Spectrum Laser (FSL), What materials are safe and not safe to engrave/vector cut, read Nov 5, 2026
Fiber, engrave or mark NO x2
Fiber lasers are not suitable for wood, glass and clear acrylic.
xTool, Fiber vs CO2 vs diode laser guide (blog), read Nov 5, 2026Passes through or reflects off; won't mark bare transparent items
OMTech, Diode vs CO2 vs fiber lasers guide (blog), read Nov 5, 2026
No statement found for: Diode cut, Fiber cut.
Fumes
Every page read treats lasering as a fume source. Match your machine's exhaust figure to an extractor on the fume and room lookup.