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HDPE and other polyethylene: diode, CO2 and fiber laser compatibility

FSL and xTool support state that HDPE melts and catches fire when cut. Monport's table lists polyethylene (PE) plastic as Yes for diode, CO2 and fiber lasers.

Also called
milk-jug plastic, cutting-board plastic
Diode laser
Engrave or mark: Yes (1), cut: Not listed
CO2 laser
Engrave or mark: Disagree, cut: No (2)
Fiber laser
Engrave or mark: Yes (1), cut: Not listed
Thickest one-pass cut listed
Not listed
Listed as No by
FSL, xTool

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)Yes (1)
Yes: Monport.
Not listed
CO2 laser (10,600 nm)Disagree
Yes: Monport. No: FSL.
No (2)
No: FSL, xTool.
Fiber laser (1064 nm)Yes (1)
Yes: Monport.
Not listed

The material lookup adds a cut thickness for HDPE and other polyethylene.

Manufacturer statements

Laser and jobManufacturerLists it asWording or table entry on the pageSource
Diode, engrave or markMonportYesPlastic (PE, PP, PET): YES (diode).Monport: CO2, fiber and diode material compatibility guide (blog)
CO2, engrave or markMonportYesPlastic (PE, PP, PET): YES (CO2). All lasers perform well on these plastics.Monport: CO2, fiber and diode material compatibility guide (blog)
CO2, engrave or markFSLNoHDPE/milk bottle plastic. Catches fire and melts.Full Spectrum Laser (FSL): What materials are safe and not safe to engrave/vector cut
CO2, cutFSLNoHDPE/milk bottle plastic. Catches fire and melts. It melts. It gets gooey. It catches fire. Don't use it.Full Spectrum Laser (FSL): What materials are safe and not safe to engrave/vector cut
CO2, cutxToolNoHDPE. Melts and easily catches fire.xTool: Support article 363, safety guide
Fiber, engrave or markMonportYesPlastic (PE, PP, PET): YES (fiber).Monport: CO2, fiber and diode material compatibility guide (blog)

Not listed for: Diode cut, Fiber cut.

One-pass cut depth

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

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.