Should you ever cut PVC, vinyl, or ABS with a laser?
Our position - short version: no.
Our position
PVC and vinyl release hydrochloric acid and chlorine gas when laser-cut. ABS produces hydrogen cyanide fumes. These materials should never go in a laser cutter. Post a materials safety list next to every laser in your space. If a student brings in a mystery plastic, the answer is always 'no' until it is positively identified.
Other voices
Reputable sources worth reading before you decide. Labels reflect our honest read of each source's general stance, not direct quotes.
ATOFINA / laser-safety bulletins
Broadly agreesEvery laser cutter manufacturer has a published materials blacklist. PVC / vinyl / ABS appear on all of them.
IChemE / chemical safety standards
Broadly agreesThe chemistry of PVC combustion producing chlorine gas is thoroughly documented. The hazard is not theoretical.
None credibly
Pushes backNo reputable source says cutting PVC, vinyl, or ABS with a laser is acceptable. Not a debate.