Laser material safety lookup
Search which materials are safe, risky or off-limits for a laser cutter or engraver, with the reason and a public source for every entry.
Last reviewed: 2026-10-08
Read this first
- This list is not exhaustive and is not a substitute for the material's safety data sheet (SDS) or your machine manual.
- If you cannot identify a plastic, do not laser it.
- Always use fume extraction and never leave a running laser unattended; fire is a risk with most materials.
- Where sources disagree we mark the material Caution and say so. Colour is never the only signal: every verdict is also written out.
How to use it: search by name or common alias, or filter by category and verdict. Each entry links to the public pages it is based on.
Showing 49 of 49 materials
PVC (polyvinyl chloride)
Plastic
Avoid
Cut: No · Engrave: No
Heated PVC releases chlorine-based gases (hydrogen chloride) that harm lungs and, with air moisture, form hydrochloric acid that corrodes optics, the motion system and the machine frame.
Kydex contains PVC and carries the same hazard. Many mystery films, foams and faux leathers are PVC.
Also known as: vinyl, polyvinyl chloride, PVC sheet, sticker vinyl, adhesive vinyl, Kydex
Sources: Epilog Laser — Laser machine unsafe materials · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · Emory TechLab — Prohibited Laser Cutter Materials (PDF) · University of Florida EHS — Laser Cutter Materials (PDF) · StyleCNC — Materials you cannot laser cut · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF)
Faux leather / pleather
Textile and leather
Avoid
Cut: No · Engrave: No
Artificial leathers are often made from PVC and give off harmful fumes and gases when lasered.
Also known as: artificial leather, synthetic leather, leatherette, PU leather
Sources: Emory TechLab — Prohibited Laser Cutter Materials (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · Fizzpop Makerspace wiki — Laser Cutting Materials
PVB (polyvinyl butyral)
Plastic
Avoid
Cut: No · Engrave: No
Listed with PVC as a prohibited material because of toxic gas formation.
Also known as: laminated glass interlayer
Sources: UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials
Vinyl-containing foam
Rubber and foam
Avoid
Cut: No · Engrave: No
Creates hazardous gases when lasered.
Also known as: vinyl foam
Sources: Emory TechLab — Prohibited Laser Cutter Materials (PDF)
ABS
Plastic
Avoid
Cut: No · Engrave: No
Melts rather than cleanly vaporising, can ignite, leaves gooey deposits on the cutting bed and emits hydrogen cyanide.
Also known as: acrylonitrile butadiene styrene, 3D print ABS, ABS plastic
Sources: UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · Emory TechLab — Prohibited Laser Cutter Materials (PDF) · University of Florida EHS — Laser Cutter Materials (PDF) · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · StyleCNC — Materials you cannot laser cut · Fizzpop Makerspace wiki — Laser Cutting Materials
Polycarbonate
Plastic
Avoid
Cut: No · Engrave: No
Absorbs infrared strongly, so it melts, browns and may ignite instead of cutting. Sources also report hazardous fumes that can damage the machine.
Also known as: Lexan, PC sheet, Makrolon
Sources: UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · Emory TechLab — Prohibited Laser Cutter Materials (PDF) · University of Florida EHS — Laser Cutter Materials (PDF) · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · StyleCNC — Materials you cannot laser cut · Fizzpop Makerspace wiki — Laser Cutting Materials
HDPE
Plastic
Avoid
Cut: No · Engrave: No
Melts and catches fire readily; one source also lists formaldehyde among the emissions.
Also known as: high-density polyethylene, milk bottle plastic, polyethylene
Sources: Emory TechLab — Prohibited Laser Cutter Materials (PDF) · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · StyleCNC — Materials you cannot laser cut
Polypropylene
Plastic
Avoid
Cut: No · Engrave: No
Burns and melts; a fire risk that can also damage the equipment.
Also known as: PP, polypropylene foam
Sources: Emory TechLab — Prohibited Laser Cutter Materials (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF)
Polystyrene foam
Rubber and foam
Avoid
Cut: No · Engrave: No
Highly flammable and gives off toxic styrene / benzene-type fumes. Sources name it as a leading cause of laser fires.
Also known as: Styrofoam, foam board, foam core, Depron, Gator foam, styrene
Sources: University of Florida EHS — Laser Cutter Materials (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · Emory TechLab — Prohibited Laser Cutter Materials (PDF) · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · Fizzpop Makerspace wiki — Laser Cutting Materials
PTFE (Teflon)
Plastic
Avoid
Cut: No · Engrave: No
Decomposes into highly toxic fluorine compounds such as carbonyl fluoride.
Also known as: Teflon, polytetrafluoroethylene, PFTE
Sources: UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · Emory TechLab — Prohibited Laser Cutter Materials (PDF) · University of Florida EHS — Laser Cutter Materials (PDF) · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · StyleCNC — Materials you cannot laser cut
Delrin / POM (acetal)
Plastic
Avoid
Cut: No · Engrave: No
Releases formaldehyde and hydrogen fluoride when lasered.
Also known as: POM, polyoxymethylene, acetal, Delrin
Sources: UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · Emory TechLab — Prohibited Laser Cutter Materials (PDF)
Nylon (solid)
Plastic
Avoid
Cut: No · Engrave: No
Materials with carbon–nitrogen bonds, nylon included, can release toxic hydrogen cyanide.
Also known as: polyamide, PA6, PA12
Sources: University of Florida EHS — Laser Cutter Materials (PDF)
Polyurethane
Plastic
Avoid
Cut: No · Engrave: No
Can release toxic hydrogen cyanide when lasered.
Also known as: PU foam, PU
Sources: University of Florida EHS — Laser Cutter Materials (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials
PETG
Plastic
Caution
Cut: Not stated · Engrave: Not stated
Sources disagree. Two university and makerspace lists prohibit PET/PETG over toxic emissions, while one vendor guide treats a verified grade as an alternative to prohibited plastics. Do not laser it without the supplier's SDS and a clear go-ahead.
Also known as: PET-G, glycol-modified PET
Sources: Fizzpop Makerspace wiki — Laser Cutting Materials · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · StyleCNC — Materials you cannot laser cut
Tritan copolyester
Plastic
Caution
Cut: Not stated · Engrave: Not stated
Not enough manufacturer data to be labelled safe; one lab keeps it off its approved list.
Also known as: Tritan
Sources: Emory TechLab — Prohibited Laser Cutter Materials (PDF)
Acrylic (PMMA)
Plastic
Generally OK
Cut: Yes · Engrave: Yes
Cuts cleanly and is not very combustible, but still needs extraction and fire watch. Check the SDS: some rubbery acrylic grades are reported to release hydrogen cyanide.
Cast acrylic is preferred for engraving; extruded acrylic cuts cleanly but engraves poorly.
Also known as: Plexiglas, Perspex, plexiglass, cast acrylic, extruded acrylic
Sources: Fizzpop Makerspace wiki — Laser Cutting Materials · University of Florida EHS — Laser Cutter Materials (PDF) · Protohaven wiki — Material Safety · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF)
Clear acrylic on a diode laser
Plastic
Caution
Cut: No · Engrave: Not stated
Safety is not the issue here, capability is: the blue diode beam passes through clear acrylic, so it will not cut it. Only dark or opaque acrylic can be processed by diode lasers.
Also known as: transparent acrylic, diode laser acrylic, blue laser acrylic
Mirrored acrylic and reflective surfaces
Other
Caution
Cut: No · Engrave: No
Mirrored surfaces reflect the beam and cut poorly. One lab only processes mirrored acrylic with the mirror side facing away from the laser, after a staff check.
Also known as: mirror acrylic, mirrored surface, reflective material
Sources: MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials
Fiberglass / epoxy composites
Composite
Avoid
Cut: No · Engrave: No
The epoxy or polyester resin binder produces toxic fumes and the glass fibre does not cut; the resin can contain compounds unsafe for laser cutting.
Also known as: FRP, glass fibre, G10, FR4, fibreglass
Sources: University of Florida EHS — Laser Cutter Materials (PDF) · Emory TechLab — Prohibited Laser Cutter Materials (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · StyleCNC — Materials you cannot laser cut · Fizzpop Makerspace wiki — Laser Cutting Materials
Carbon fiber (and coated carbon fiber)
Composite
Avoid
Cut: No · Engrave: No
The resin emits toxic fumes, can burn and damages equipment; the fibre itself cuts poorly.
Also known as: carbon fibre, CFRP, coated carbon fiber
Sources: Emory TechLab — Prohibited Laser Cutter Materials (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · Fizzpop Makerspace wiki — Laser Cutting Materials
Epoxy and phenolic resins
Composite
Avoid
Cut: No · Engrave: No
Emit toxic fumes when lasered and can burn.
Also known as: epoxy, phenolic, Bakelite, ecoresin, resin sheet
Sources: MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · Emory TechLab — Prohibited Laser Cutter Materials (PDF)
Materials marked flame-retardant
Other
Avoid
Cut: No · Engrave: No
Often contain bromine or other halogens, which create harmful fumes.
Also known as: FR, flame retardant, fire retardant
Sources: Emory TechLab — Prohibited Laser Cutter Materials (PDF) · Fizzpop Makerspace wiki — Laser Cutting Materials
Self-adhesive / sticky-backed materials
Other
Avoid
Cut: No · Engrave: No
Many adhesives, some chlorine-containing, create harmful fumes and can damage optics.
Also known as: adhesive sheet, glued materials, sticker sheet, self-adhesive cork tile
Sources: Emory TechLab — Prohibited Laser Cutter Materials (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials
Unidentified plastics and composites
Plastic
Avoid
Cut: No · Engrave: No
If you cannot identify the material, assume it can be any of the hazardous ones above. Mystery faux leather, foam and film are frequently PVC.
Identify it first via label, supplier SDS or recycling code.
Also known as: mystery plastic, unknown material, unlabelled plastic
Sources: University of Florida EHS — Laser Cutter Materials (PDF) · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · Fizzpop Makerspace wiki — Laser Cutting Materials · StyleCNC — Materials you cannot laser cut
MDF / HDF
Wood
Caution
Cut: Yes · Engrave: Yes
Sources disagree. Several labs allow it with extraction running, others prohibit it: the glue binder can release formaldehyde (a carcinogen) and it chars heavily and leaves heavy smoke and residue.
Also known as: medium-density fibreboard, fibreboard, hardboard
Sources: Fizzpop Makerspace wiki — Laser Cutting Materials · University of Florida EHS — Laser Cutter Materials (PDF) · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · Emory TechLab — Prohibited Laser Cutter Materials (PDF)
Plywood
Wood
Caution
Cut: Yes · Engrave: Yes
Laser-grade plywood is widely accepted, but ordinary plywood glues may contain formaldehyde or other unsuitable adhesives and char heavily.
Also known as: birch ply, poplar ply, laser ply, engineered wood
Sources: Fizzpop Makerspace wiki — Laser Cutting Materials · University of Florida EHS — Laser Cutter Materials (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · Emory TechLab — Prohibited Laser Cutter Materials (PDF)
Solid hardwood
Wood
Generally OK
Cut: Yes · Engrave: Yes
Generally accepted, but always watch for flare-ups and use extraction. Safety varies by species.
Also known as: wood, maple, alder, cherry, walnut, basswood
Sources: Fizzpop Makerspace wiki — Laser Cutting Materials · University of Florida EHS — Laser Cutter Materials (PDF) · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF)
Resinous, oily and coniferous wood
Wood
Caution
Cut: Yes · Engrave: Yes
Higher resin content makes these woods more susceptible to fire and gives inconsistent results; some labs prohibit them.
Also known as: pine, spruce, cedar, teak, exotic wood, oily wood
Sources: University of Florida EHS — Laser Cutter Materials (PDF) · Emory TechLab — Prohibited Laser Cutter Materials (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials
Cork
Other
Generally OK
Cut: Yes · Engrave: Yes
Cuts well and is not very combustible. Self-adhesive cork tiles are a different matter because of the adhesive.
Also known as: cork sheet, cork board
Sources: University of Florida EHS — Laser Cutter Materials (PDF) · Fizzpop Makerspace wiki — Laser Cutting Materials
Paper, card stock, matboard, chipboard
Paper
Generally OK
Cut: Yes · Engrave: Yes
Cuts well but should be watched for fires.
Also known as: paper, cardstock, card, matboard, chipboard
Sources: University of Florida EHS — Laser Cutter Materials (PDF) · Fizzpop Makerspace wiki — Laser Cutting Materials · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF)
Corrugated cardboard
Paper
Caution
Cut: Yes · Engrave: Not stated
Sources disagree. Some list cardboard as safe, while others warn that air gaps in the corrugation can cause fires. Never leave it unattended.
Also known as: cardboard, corrugated board, box board
Sources: Fizzpop Makerspace wiki — Laser Cutting Materials · University of Florida EHS — Laser Cutter Materials (PDF) · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF)
Vegetable-tanned leather
Textile and leather
Generally OK
Cut: Yes · Engrave: Yes
Natural-tanned leather is accepted. Natural dyes are best.
Also known as: natural leather, veg-tan, vegetable tanned
Sources: Fizzpop Makerspace wiki — Laser Cutting Materials · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · StyleCNC — Materials you cannot laser cut
Chrome-tanned leather
Textile and leather
Avoid
Cut: No · Engrave: No
Tanning and dyeing contain chromium; burning it can release harmful, carcinogenic chromium compounds. Most colourful leathers fall in this group.
Also known as: chromium tanned leather, coloured leather, dyed leather
Sources: Emory TechLab — Prohibited Laser Cutter Materials (PDF) · StyleCNC — Materials you cannot laser cut
Felt and fleece
Textile and leather
Caution
Cut: Yes · Engrave: Not stated
Sources disagree. One lab lists felt and fleece as prohibited because of cyanide risk, another accepts felt. Synthetic felt and fleece are the main concern.
Also known as: wool felt, fleece, synthetic felt
Sources: UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF)
Cotton and natural fabric
Textile and leather
Generally OK
Cut: Yes · Engrave: Yes
Natural materials work best, but cotton is a fire hazard and needs close supervision.
Also known as: linen, canvas, natural fibre, natural fabric
Sources: MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · Protohaven wiki — Material Safety · University of Florida EHS — Laser Cutter Materials (PDF)
Synthetic fabric
Textile and leather
Caution
Cut: Yes · Engrave: Not stated
Sources disagree by fibre. One list prohibits several (cyanide or formaldehyde risk), while another accepts polyester cloth. Synthetics tend to melt, and coated or other synthetic cloths must not contain hazardous materials.
Also known as: acetate, rayon, viscose, spandex, cellophane, polyester, Tyvek, coated fabric
Sources: University of Florida EHS — Laser Cutter Materials (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF)
Neoprene
Rubber and foam
Avoid
Cut: No · Engrave: No
A halogen-containing material (chlorine) that releases toxic and corrosive gases.
Also known as: chloroprene, wetsuit rubber
Sources: University of Florida EHS — Laser Cutter Materials (PDF)
Laser-safe rubber
Rubber and foam
Generally OK
Cut: Yes · Engrave: Yes
Accepted only when sold specifically as laser-safe.
Also known as: rubber stamp sheet, laserable rubber
Sources: Fizzpop Makerspace wiki — Laser Cutting Materials · MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · Emory TechLab — Prohibited Laser Cutter Materials (PDF)
Other rubber and elastomers
Rubber and foam
Avoid
Cut: No · Engrave: No
Some rubbers create hazardous gases such as carbonyl fluoride and hydrogen fluoride. Use rubber sold as laser-safe instead.
Also known as: rubber, silicone rubber, elastomer, EPDM
Sources: Emory TechLab — Prohibited Laser Cutter Materials (PDF) · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials
Linoleum printmaking blocks
Other
Avoid
Cut: No · Engrave: No
Emits toxic fumes when lasered.
Also known as: lino block, linocut
Sources: MCAD Digital Lab — Laser Cutter Material Guidelines (PDF)
Glass
Stone and glass
Generally OK
Cut: No · Engrave: Yes
Engrave only. The laser frosts the surface but cannot cut glass.
Also known as: glassware, bottle, mirror glass
Sources: MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · Protohaven wiki — Material Safety
Stone, slate, marble
Stone and glass
Generally OK
Cut: No · Engrave: Yes
Engrave only; cutting is not possible.
Also known as: slate, marble, granite, quartz
Sources: MCAD Digital Lab — Laser Cutter Material Guidelines (PDF) · Protohaven wiki — Material Safety
Ceramic tile
Stone and glass
Generally OK
Cut: No · Engrave: Yes
Engrave-only material; the laser lightly etches the surface.
Also known as: tile, porcelain tile
Sources: Protohaven wiki — Material Safety
Anodized or painted metal
Metal
Caution
Cut: No · Engrave: Yes
A CO2 laser can mark certain coated metals but cannot cut metal, and reflections can damage optics. Follow your machine manual and local rules.
Also known as: anodized aluminum, anodised aluminium, painted metal, coated metal
Sources: Protohaven wiki — Material Safety · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · Emory TechLab — Prohibited Laser Cutter Materials (PDF)
Bare metal (aluminium, steel, copper, brass)
Metal
Avoid
Cut: No · Engrave: No
A CO2 laser cannot cut metal, and bare reflective metal can bounce the beam and damage the laser or its optics. Marking compounds are machine-specific; check your manual.
Also known as: aluminum, stainless steel, steel, copper, brass, titanium
Sources: UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · Emory TechLab — Prohibited Laser Cutter Materials (PDF) · Protohaven wiki — Material Safety
Corian / solid-surface
Composite
Caution
Cut: Yes · Engrave: Yes
Only one source in our review lists it as approved for cutting and engraving; check the manufacturer's SDS before use.
Also known as: solid surface, acrylic stone
Sources: Protohaven wiki — Material Safety
Mylar / PET film
Plastic
Caution
Cut: Yes · Engrave: Not stated
Sources disagree: one makerspace approves Mylar and PET sheet, while others list PET/PETG as prohibited. Confirm the exact film with its SDS.
Also known as: polyester film, PET, stencil film, Mylar
Sources: Protohaven wiki — Material Safety · Fizzpop Makerspace wiki — Laser Cutting Materials
Painted, varnished or coated materials
Other
Caution
Cut: Not stated · Engrave: Not stated
The finish chemistry must be verified as laser-safe; paints, glues and laminates can add hazardous fumes.
Also known as: lacquered, finished wood, painted wood, laminate
Sources: Fizzpop Makerspace wiki — Laser Cutting Materials · UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials
Food
Other
Avoid
Cut: No · Engrave: No
Can burn or melt and contaminate the machine; consumables should not be processed in a laser used for other materials.
Also known as: edible, chocolate, bread
Sources: UT Austin SoA Digital Tech — Prohibited Laser Cutter Materials · University of Florida EHS — Laser Cutter Materials (PDF) · Emory TechLab — Prohibited Laser Cutter Materials (PDF)
Cite this page
Linking from a makerspace wiki, course page or forum? Please use this address.
https://vextrify.com/en/tools/laser-material-safety
Vextrify. “Laser material safety lookup.” Last reviewed 2026-10-08. https://vextrify.com/en/tools/laser-material-safety
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