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Fiberglass and epoxy: diode, CO2 and fiber laser compatibility

FSL lists fiberglass as a material that cannot be cut and that gives off fumes. FSL also states that epoxy-coated items and cast epoxy resin must not be used in a laser cutter. No other manufacturer linked here covers fiberglass.

Listed as unsafe. One or more laser manufacturers list this material as one to keep out of a laser. Their statements are in the table below.
Also called
G10, FR4, epoxy resin
Diode laser
Engrave or mark: Not listed, cut: Not listed
CO2 laser
Engrave or mark: No (1), cut: No (1)
Fiber laser
Engrave or mark: Not listed, cut: Not listed
Thickest one-pass cut listed
Not listed
Listed as No by
FSL

Compatibility by laser type

Yes (2) 2 manufacturers or stores list it as workableNo (2) 2 list it as not workableDisagree manufacturers list bothWith conditions workable only under a stated conditionNot listed no manufacturer statement
Laser typeEngrave or markCut
Diode laser (blue, about 450 to 455 nm)Not listedNot listed
CO2 laser (10,600 nm)No (1)
No: FSL.
No (1)
No: FSL.
Fiber laser (1064 nm)Not listedNot listed

The material lookup adds a cut thickness for fiberglass and epoxy.

Manufacturer statements

Laser and jobManufacturerLists it asWording or table entry on the pageSource
CO2, engrave or markFSLNoItems 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
CO2, cutFSLNoFiberglass. 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

Not listed for: Diode engrave or mark, Diode cut, Fiber engrave or mark, Fiber cut.

One-pass cut depth

No one-pass cut depth is listed for this material on the laser machines page.

Notes

Fumes

Laser cutting and engraving give off fumes. The machine's manual has the venting rules for that machine. The fume and room lookup compares a machine's exhaust airflow with fume extractor airflow.