Laser 101 · Materials
Laser cutting foam.
Laser-cut foam gives you clean, repeatable shapes for cosplay, tool inserts, packaging, and props. Which foam works depends on the material.
Which foams a CO₂ laser can cut
The foam a laser handles best is EVA foam — the craft and cosplay foam sold in sheets and rolls — which cuts cleanly up to about 1″ thick. Paper-faced foam core (foam board) also cuts crisply for models and mounting.
Several foams are off-limits. PVC foam board — Sintra, Foamex, Celtec — is PVC and releases corrosive chlorine gas; we do not cut it. Polystyrene and Styrofoam catch fire and melt badly. Many polyurethane and closed-cell foams vary by formulation. If you are not sure what a foam is, bring a small sample and we will test it safely before running the job.
EVA foam — the cosplay and props workhorse
EVA foam cuts to a clean, lightly sealed edge with none of the ragged tearing you get from a blade. Because every piece comes off the file identically, it is ideal for cosplay armor, helmets, and props where left and right halves need to match, and for layered builds with many repeated parts.
Thick EVA — up to about an inch — cuts with a slight edge bevel, which is often useful for glue seams. Send your pattern and we will cut a full set in one run.
Tool, case and drawer inserts
One of the most practical uses for laser-cut foam is custom inserts — shadow-board style organizers for tool drawers, cases, and Pelican-type boxes. The laser cuts pockets to the exact outline of each tool or part, so everything has a home and a missing item is obvious at a glance.
Send the outlines or the measurements and we cut precise, repeatable pockets — far cleaner and faster than tracing and hand-cutting.
Designing for foam
Send vector files (AI, DXF, or PDF) at 1:1 scale. On thick foam expect a slight taper to the cut edge — normal, and easy to work with. For multi-part patterns, send the pieces clearly laid out and we nest them to use the sheet efficiently. For any foam we have not run before, we test a small piece first.
Common questions
Can you laser cut Styrofoam or polystyrene?
No. Polystyrene and Styrofoam catch fire and melt badly under a laser. EVA foam is the safe, clean-cutting choice for most foam projects.
How thick of EVA foam can you cut?
Up to about 1″. Thick EVA cuts with a slight edge bevel, which is often handy for glue seams on cosplay and prop builds.
Can you cut custom foam tool inserts?
Yes — shadow-board inserts for tool drawers, cases, and equipment boxes are one of the most popular foam jobs. Send outlines or measurements and we cut precise pockets.
Will the cut edge melt?
EVA foam cuts to a clean, lightly sealed edge — not a melted one. Foams that genuinely melt (polystyrene, some polyurethanes) are ones we do not cut.
Can you cut Sintra or PVC foam board?
No. Sintra, Foamex, and Celtec are PVC and release corrosive chlorine gas when lasered. Bring a sample of any unknown foam and we will identify a safe alternative.
Cutting foam inserts or props?
Industrial CO₂ lasers, beds up to 46 by 58 inches, in downtown Los Angeles. A real person checks every job.