index / materials / fiberglass
Fiberglass and epoxy
also: G10, FR4, epoxy resin
Never list. At least one laser maker tells owners not to put this in the machine. Quotes below.
Fiberglass is glass fibres in epoxy. The one maker page found that covers it says neither part cuts and the resin gives off fumes.
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 STATEMENT | NO STATEMENT |
| CO2 (10,600 nm) | 1 SOURCE: NO | 1 SOURCE: NO |
| Fiber (1064 nm) | NO STATEMENT | NO STATEMENT |
Run fiberglass and epoxy through the matcher to add a cut thickness.
What each maker says
CO2, engrave or mark 1 SOURCE: NO
Items coated in Epoxy, or cast Epoxy resins must not be used in the laser cutter.
Full Spectrum Laser (FSL), What materials are safe and not safe to engrave/vector cut, read Nov 5, 2026
CO2, cut 1 SOURCE: NO
Fiberglass. Emits fumes. It's a mix of two materials that cant' be cut. Glass (etch, no cut) and epoxy resin (fumes)
Full Spectrum Laser (FSL), What materials are safe and not safe to engrave/vector cut, read Nov 5, 2026
No statement found for: Diode engrave or mark, Diode cut, Fiber engrave or mark, Fiber cut.
Notes from the pages
- Only one maker page read (FSL) covers fiberglass. Second source not found on Nov 5, 2026, so the verdict shows as one source.
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.