Can I Laser This?
Type a material to see whether it's safe to put in a laser, what the hazard is, and which laser types can engrave or cut it. Every verdict links to its sources.
How this works
Enter your own numbers or keep our defaults. Results update as you type and are calculated on your device; nothing is sent to us. Each default value shows where it came from.
Assumptions you can change
Verdicts summarize the cited safety sources for common formulations. Coatings, fillers and unknown plastics change everything — if you can't identify a material, don't laser it.
Short answer: wood, paper, natural leather, cotton, cast acrylic, slate, glass and anodized aluminum are routinely lasered with good fume extraction. Never laser PVC or vinyl (it releases chlorine / hydrogen chloride gas), faux leather, polycarbonate, ABS, HDPE, fiberglass, foam, galvanized steel — or anything you can't identify.
51 materials — showing the most-asked 9
- NeverPlastics
PVC / vinyl (incl. adhesive vinyl and HTV)
Never: Releases chlorine / hydrogen chloride gas — toxic to breathe and corrodes the machine and optics.
Cut vinyl on a vinyl cutter instead. If a sheet’s composition is unknown, assume it may contain chlorine.
Sources: ATX Hackerspace, Emory TechLab, MIT EHS, xToolIn table - SafePlastics
Cast acrylic (PMMA)
Flammable; fumes are irritating but manageable with extraction.
What each laser type can do with Cast acrylic (PMMA) Diode CO2 Fiber Engrave Limited Yes No Cut Limited Yes No - Diode: A blue diode cannot cut clear, white or blue acrylic; dark opaque colors work.
- CO2: Cast acrylic engraves frosty white — best for engraving.
- Fiber: Clear acrylic is largely transparent at 1,064 nm.
Sources: ATX Hackerspace, xTool Support, Epilog LaserIn table - SafeLeather
Vegetable-tanned leather
Strong burnt-hair smell; flammable edges. Real leather only.
What each laser type can do with Vegetable-tanned leather Diode CO2 Fiber Engrave Yes Yes Limited Cut Limited Yes No - Diode: Thin leather cuts; thick belts need many passes.
Sources: ATX Hackerspace, Epilog LaserIn table - NeverLeather
Faux leather / pleather
Never: Often PVC-based (chlorine gas). Only PU-based laserable leatherette sold specifically for lasers is an exception — confirm with the SDS.
Sources: ATX Hackerspace, Emory TechLabIn table - SafeWood
Laser-grade plywood (e.g. basswood / birch ply)
Glue layers cause uneven cuts and more smoke; buy ply sold for laser use.
What each laser type can do with Laser-grade plywood (e.g. basswood / birch ply) Diode CO2 Fiber Engrave Yes Yes Limited Cut Yes Yes No - Diode: Glue lines may stop cuts; 3 mm is the common hobby thickness.
Sources: ATX Hackerspace, xToolIn table - SafeCoated items
Powder-coated stainless tumbler
Coating fumes; removing the coating reveals the steel. Use extraction.
What each laser type can do with Powder-coated stainless tumbler Diode CO2 Fiber Engrave Yes Yes Yes Cut No No No - Diode: Needs a rotary; removes coating to bare steel.
- CO2: Needs a rotary.
- Fiber: Galvo fiber with rotary; can also mark the steel beneath.
Sources: ATX Hackerspace, xToolIn table - NeverPlastics
Polycarbonate (Lexan, Makrolon)
Never: Cuts poorly, discolors, generates soot and can catch fire. Prohibited by MIT EHS and Emory; ATX only allows < 1 mm.
Sources: MIT EHS, Emory TechLab, ATX Hackerspace, xToolIn table - SafeStone, glass & ceramic
Slate (coasters, signs)
Stone dust; engraving only.
What each laser type can do with Slate (coasters, signs) Diode CO2 Fiber Engrave Yes Yes Yes Cut No No No Sources: ATX Hackerspace, xToolIn table - CautionWood
MDF / HDF
Resin binders (often urea-formaldehyde) — heavy char and fumes; some facilities prohibit it.
What each laser type can do with MDF / HDF Diode CO2 Fiber Engrave Yes Yes Limited Cut Yes Yes No - Diode: Thin (≤ 3 mm) sheets.
Prefer low-formaldehyde (CARB2 / NAF) boards and strong extraction.
Sources: ATX Hackerspace, Emory TechLabIn table
The never list
17 of the 51 materials in our dataset should never go in a hobby laser — toxic or corrosive fumes, or a serious fire risk:
- Polycarbonate (Lexan, Makrolon) — Cuts poorly, discolors, generates soot and can catch fire. Prohibited by MIT EHS and Emory; ATX only allows < 1 mm.
- PVC / vinyl (incl. adhesive vinyl and HTV) — Releases chlorine / hydrogen chloride gas — toxic to breathe and corrodes the machine and optics.
- ABS plastic — Melts, can catch fire and emits hydrogen cyanide.
- HDPE (cutting-board plastic, milk jugs) — Catches fire and melts into a gooey mess.
- PTFE (Teflon) — Decomposes into fluorinated gases that are hazardous to breathe (Emory prohibits; ATX allows thin sheet only with full venting). We treat it as never for home shops.
- Faux leather / pleather — Often PVC-based (chlorine gas). Only PU-based laserable leatherette sold specifically for lasers is an exception — confirm with the SDS.
- Coated / waterproof fabric (PVC or vinyl-coated) — Coatings are frequently PVC (chlorine gas).
- Galvanized steel — Zinc coating releases zinc oxide fumes (metal fume fever).
- Fiberglass (FR-4, GRP) — Glass + epoxy resin: toxic fumes, and it does not cut cleanly.
- Carbon fiber (epoxy/coated) — Resin produces noxious fumes; flammable. Uncoated carbon fiber cloth is a supervised exception at some makerspaces.
- Epoxy resin pieces — Emits toxic fumes and leaves burned residue.
- Anything flame-retardant treated — Flame retardants often contain bromine; harmful fumes.
- Polystyrene foam (EPS, Styrofoam, foam core) — Catches fire — a leading cause of laser fires; styrene fumes.
- Polypropylene foam — Catches fire and drips.
- Rubber of unknown composition (neoprene, etc.) — Neoprene (polychloroprene) and many rubbers contain chlorine.
- Food (bread, cookies, fruit) — Hobby machines are not food-safe equipment; toxic smoke byproducts and contamination. Makerspaces prohibit it.
- Unknown / unlabeled material — Do not laser materials of unknown composition — ask for the Safety Data Sheet first.
All 51 materials
Every row has its own link (for example #pvc), so you can point a customer or a makerspace member straight to it. 17 never, 16 caution, 18 safe.
| Material | Verdict | Main hazard | Diode | CO2 | Fiber | Sources |
|---|---|---|---|---|---|---|
| Wood | ||||||
| Solid hardwood (maple, cherry, walnut, alder) | Safe | Smoke and flare-ups; normal fume extraction and air assist.Tight-grained, light woods (maple, alder, basswood) give the most even engraving contrast. | EngraveYesCutYesCuts thin stock (typically ≤ 6–10 mm depending on power, several passes). | EngraveYesCutYes | EngraveLimitedCutNo1,064 nm is poorly absorbed by wood; marks are faint or scorched. | [1][2][3] |
| Resinous / oily softwood (pine, cedar, teak) | Caution | Resins flare up and increase fire risk; uneven, sticky char.Never leave unattended; keep air assist on. | EngraveYesCutLimited | EngraveYesCutLimited | EngraveLimitedCutNo | [1][4] |
| Laser-grade plywood (e.g. basswood / birch ply) | Safe | Glue layers cause uneven cuts and more smoke; buy ply sold for laser use. | EngraveYesCutYesGlue lines may stop cuts; 3 mm is the common hobby thickness. | EngraveYesCutYes | EngraveLimitedCutNo | [1][2] |
| Construction / exterior plywood | Caution | Unknown glues and treatments can release hazardous fumes; voids stop cuts.Never laser pressure-treated lumber (chemical preservatives). | EngraveLimitedCutLimited | EngraveLimitedCutLimited | EngraveNoCutNo | [4][5] |
| MDF / HDF | Caution | Resin binders (often urea-formaldehyde) — heavy char and fumes; some facilities prohibit it.Prefer low-formaldehyde (CARB2 / NAF) boards and strong extraction. | EngraveYesCutYesThin (≤ 3 mm) sheets. | EngraveYesCutYes | EngraveLimitedCutNo | [1][4] |
| Bamboo (cutting boards, utensils) | Safe | Glue lines between strips can engrave darker; normal smoke. | EngraveYesCutLimited | EngraveYesCutYes | EngraveLimitedCutNo | [2] |
| Natural cork sheet / coasters | Safe | Flammable — watch for flare-ups; agglomerated cork contains glue. | EngraveYesCutYes | EngraveYesCutYes | EngraveNoCutNo | [1] |
| Paper & card | ||||||
| Paper and cardstock | Caution | Very flammable; cuts fast but can ignite, and small pieces can fly into the beam path.Use air assist and never leave the machine unattended. | EngraveYesCutYesWhite paper reflects blue light; darker stock cuts more easily. | EngraveYesCutYes | EngraveNoCutNo | [1][3] |
| Cardboard / chipboard | Caution | Very flammable; corrugation traps heat. | EngraveYesCutYes | EngraveYesCutYes | EngraveNoCutNo | [1] |
| Plastics | ||||||
| Cast acrylic (PMMA) | Safe | Flammable; fumes are irritating but manageable with extraction. | EngraveLimitedCutLimitedA blue diode cannot cut clear, white or blue acrylic; dark opaque colors work. | EngraveYesCutYesCast acrylic engraves frosty white — best for engraving. | EngraveNoCutNoClear acrylic is largely transparent at 1,064 nm. | [1][6][3] |
| Extruded acrylic (PMMA) | Safe | Flammable; same fumes as cast acrylic. | EngraveLimitedCutLimitedSame color limits as cast: no clear, white or blue with a blue diode. | EngraveLimitedCutYesCuts with flame-polished edges; engraving looks clear rather than frosted. | EngraveNoCutNo | [6][1] |
| Polycarbonate (Lexan, Makrolon) | Never | Cuts poorly, discolors, generates soot and can catch fire. Prohibited by MIT EHS and Emory; ATX only allows < 1 mm. | Never | Never | EngraveLimitedCutNoSome fiber lasers mark PC parts industrially; not recommended for hobby setups. | [5][4][1][2] |
| PVC / vinyl (incl. adhesive vinyl and HTV) | Never | Releases chlorine / hydrogen chloride gas — toxic to breathe and corrodes the machine and optics.Cut vinyl on a vinyl cutter instead. If a sheet’s composition is unknown, assume it may contain chlorine. | Never | Never | Never | [1][4][5][2] |
| ABS plastic | Never | Melts, can catch fire and emits hydrogen cyanide. | Never | Never | EngraveLimitedCutNeverIndustrial fiber marking of ABS parts exists with engineered extraction; not for hobby setups. | [1][4] |
| HDPE (cutting-board plastic, milk jugs) | Never | Catches fire and melts into a gooey mess. | Never | Never | EngraveLimitedCutNeverLaser-markable HDPE grades exist for industrial fiber marking. | [1][4][2] |
| Polypropylene (PP) sheet | Caution | Burns and melts; Emory prohibits it. Thin sheet can be cut with close supervision where allowed. | EngraveNoCutNo | EngraveLimitedCutLimited | EngraveLimitedCutNo | [4] |
| Delrin / acetal (POM) | Caution | Releases formaldehyde; MIT allows thin sheets only, Emory prohibits it. | EngraveNoCutNo | EngraveYesCutLimitedThin sheets only. | EngraveLimitedCutNo | [1][5][4] |
| Solid polystyrene (styrene sheet) | Caution | Smokes heavily; styrene fumes. ATX allows thin (≤ 1/16 in) sheet. | EngraveNoCutNo | EngraveLimitedCutLimited | EngraveNoCutNo | [1][4] |
| PTFE (Teflon) | Never | Decomposes into fluorinated gases that are hazardous to breathe (Emory prohibits; ATX allows thin sheet only with full venting). We treat it as never for home shops. | Never | Never | Never | [4][1] |
| Mylar (polyester film, stencils) | Caution | Thin film only; thick film warps. Metallized / gold-coated film reflects and is not suitable. | EngraveNoCutLimitedClear film passes blue light; only colored/opaque films absorb. | EngraveLimitedCutYes | EngraveNoCutNo | [1] |
| Leather | ||||||
| Vegetable-tanned leather | Safe | Strong burnt-hair smell; flammable edges. Real leather only. | EngraveYesCutLimitedThin leather cuts; thick belts need many passes. | EngraveYesCutYes | EngraveLimitedCutNo | [1][3] |
| Chrome-tanned leather | Caution | Chromium tanning chemistry creates harmful fumes; Emory prohibits it. Most soft, dyed garment leather is chrome-tanned.Ask the supplier for the tanning method; prefer veg-tan for laser work. | EngraveLimitedCutLimited | EngraveLimitedCutLimited | EngraveNoCutNo | [4] |
| Faux leather / pleather | Never | Often PVC-based (chlorine gas). Only PU-based laserable leatherette sold specifically for lasers is an exception — confirm with the SDS. | Never | Never | Never | [1][4] |
| Textiles | ||||||
| Cotton, canvas, denim, felt (natural fibers) | Safe | Flammable; avoid plastic-coated fabrics. | EngraveYesCutYesDark fabrics absorb blue light far better than white. | EngraveYesCutYes | EngraveNoCutNo | [1][3] |
| Polyester / synthetic fabric | Caution | Melts rather than burns (sealed edges); fumes from dyes and finishes. Avoid coated or flame-retardant fabrics. | EngraveLimitedCutLimited | EngraveYesCutYes | EngraveLimitedCutNo | [3][4] |
| Coated / waterproof fabric (PVC or vinyl-coated) | Never | Coatings are frequently PVC (chlorine gas). | Never | Never | Never | [1][4] |
| Stone, glass & ceramic | ||||||
| Slate (coasters, signs) | Safe | Stone dust; engraving only. | EngraveYesCutNo | EngraveYesCutNo | EngraveYesCutNo | [1][2] |
| Granite, marble and other stone | Safe | Stone dust; engraving leaves a white textured mark. | EngraveYesCutNo | EngraveYesCutNo | EngraveLimitedCutNo | [1][3] |
| Glass (flat or drinkware) | Safe | Micro-cracking and chips; no cutting. | EngraveLimitedCutNoClear glass passes blue light — needs a coating/paint or tape layer. | EngraveYesCutNoFrosted, sandblasted look. | EngraveLimitedCutNoMostly transparent at 1,064 nm; coatings or specialty glass only. | [1][3][2] |
| Ceramic tile | Safe | Glaze dust; engraving only. | EngraveLimitedCutNoUsually needs a coating to leave a dark mark. | EngraveYesCutNo | EngraveLimitedCutNo | [1][3] |
| Metals | ||||||
| Anodized aluminum (business cards, tags) | Safe | Minimal — the laser removes the dyed anodized layer (white/silver mark). | EngraveYesCutNo | EngraveYesCutNo | EngraveYesCutLimitedFiber can cut very thin sheet slowly. | [1][3] |
| Stainless steel (bare) | Safe | Reflection hazard on polished surfaces; wear the correct laser safety glasses. | EngraveLimitedCutNoHigher-power diodes can mark it, often with several passes or marking spray. | EngraveLimitedCutNoNeeds a metal-marking spray/compound. | EngraveYesCutLimitedBest tool for direct marking; color annealing possible. | [7][3] |
| Brass and copper | Safe | Highly reflective — back-reflection can damage some sources. | EngraveNoCutNoMarking spray only. | EngraveLimitedCutNoMarking compound only. | EngraveYesCutLimited | [3] |
| Bare aluminum | Safe | Reflective; bare aluminum marks lighter/grey. | EngraveLimitedCutNoMarking spray needed for a dark mark. | EngraveLimitedCutNoMarking compound only. | EngraveYesCutLimited | [3][2] |
| Galvanized steel | Never | Zinc coating releases zinc oxide fumes (metal fume fever). | Never | Never | Never | [2] |
| Coated items | ||||||
| Powder-coated stainless tumbler | Safe | Coating fumes; removing the coating reveals the steel. Use extraction. | EngraveYesCutNoNeeds a rotary; removes coating to bare steel. | EngraveYesCutNoNeeds a rotary. | EngraveYesCutNoGalvo fiber with rotary; can also mark the steel beneath. | [1][2] |
| Painted / coated metal | Caution | Unknown paints may contain chlorinated or heavy-metal pigments — check the SDS. | EngraveYesCutNo | EngraveYesCutNo | EngraveYesCutNo | [1][4] |
| Composites & resins | ||||||
| Fiberglass (FR-4, GRP) | Never | Glass + epoxy resin: toxic fumes, and it does not cut cleanly. | Never | Never | Never | [1][4] |
| Carbon fiber (epoxy/coated) | Never | Resin produces noxious fumes; flammable. Uncoated carbon fiber cloth is a supervised exception at some makerspaces. | Never | Never | Never | [1][4][2] |
| Epoxy resin pieces | Never | Emits toxic fumes and leaves burned residue. | Never | Never | Never | [1] |
| Corian / solid surface | Caution | Acrylic-based solid surface engraves well; confirm composition (some solid-surface products are polyester-based). | EngraveLimitedCutNo | EngraveYesCutLimited | EngraveNoCutNo | [3] |
| Foam & rubber | ||||||
| Polystyrene foam (EPS, Styrofoam, foam core) | Never | Catches fire — a leading cause of laser fires; styrene fumes. | Never | Never | Never | [1][5][4][2] |
| Polypropylene foam | Never | Catches fire and drips. | Never | Never | Never | [1][2] |
| EVA craft / cosplay foam | Caution | Flammable, melts; some foams are PVC or vinyl-based (never). Confirm EVA on the SDS; supervise closely. | EngraveLimitedCutLimited | EngraveLimitedCutLimited | EngraveNoCutNo | [4][1] |
| Laser rubber (stamp rubber, chlorine-free) | Caution | Only rubber sold as laser-safe / chlorine-free. Heavy smell and dust. | EngraveLimitedCutLimited | EngraveYesCutYes | EngraveNoCutNo | [1][4] |
| Rubber of unknown composition (neoprene, etc.) | Never | Neoprene (polychloroprene) and many rubbers contain chlorine. | Never | Never | Never | [1][4] |
| Other | ||||||
| Anything flame-retardant treated | Never | Flame retardants often contain bromine; harmful fumes. | Never | Never | Never | [4] |
| Food (bread, cookies, fruit) | Never | Hobby machines are not food-safe equipment; toxic smoke byproducts and contamination. Makerspaces prohibit it. | Never | Never | Never | [1][4] |
| Self-adhesive sheets (unknown adhesive) | Caution | Adhesives can contain chlorine and release harmful fumes; check the SDS. | EngraveLimitedCutLimited | EngraveLimitedCutLimited | EngraveNoCutNo | [4] |
| Flexible magnetic sheet | Safe | Smell and smoke; cuts well on CO2. | EngraveLimitedCutLimited | EngraveYesCutYes | EngraveNoCutNo | [1] |
| Unknown / unlabeled material | Never | Do not laser materials of unknown composition — ask for the Safety Data Sheet first. | Never | Never | Never | [5] |
Source numbers match the numbered list in the Sources section below.
How to read the verdicts
- Safe — routinely processed with normal fume extraction.
- Caution — can be processed with specific precautions: strong ventilation, supervision, thin stock or known composition. Where the cited lists disagree, the hazard text says so.
- Never — toxic or corrosive fumes, or a serious fire risk. Don't put it in any hobby laser.
- Yes / Limited / No per laser type describe what the wavelength can physically do: Blue diode (~455 nm), CO2 (10.6 µm), Fiber / infrared (1,064 nm). "Limited" usually means only some colors, thin stock, or with a coating or marking spray.
Assumptions
- Capabilities assume typical hobby/small-business machines: diode 5–40 W optical, CO2 40–100 W, fiber 20–60 W.
- Where the cited lists disagree (e.g. Delrin, polypropylene, chrome-tanned leather) we use caution and name the disagreement in `hazard`; your makerspace or insurer may be stricter.
- Always use fume extraction, never leave a running laser unattended, and keep a fire extinguisher nearby.
- This is general guidance compiled from the makerspace, university and manufacturer lists below — not a substitute for the material's Safety Data Sheet or your facility's rules. Dataset last reviewed 2026-09-25.
Related guides
Sources
Every spec and number on this page links back to where it came from.
- ATX Hackerspace — Laser Cutter Materials (PDF snapshot of the wiki)
- xTool — The Complete Laser Cutting Materials List
- Epilog Laser — Laserable Material Compatibility
- Emory TechLab — Prohibited Laser Cutter Materials (PDF)
- MIT EHS — Laser Cutter Safety Guidance (Jan 2024, PDF)
- xTool Support — Essentials When Processing Acrylic
- xTool — Stainless Steel Laser Engraving guide
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