Several materials should NEVER be laser engraved or cut:
- Many plastics - Do not engrave but simply melt
- PVC (Poly Vinyl Chloride) / Vinyl / Pleather / Artificial leather - Emits chlorine gas when cut, ruins the optics and the machine's motion control system
- Polycarbonate/Lexan - Catches fire ABS - Emits cyanide gas and tends to melt
- HDPE/milk bottle plastic - Catches fire and melts
- Polystyrene/PolyPropylene Foam - Catches fire
- Fiberglass - Emits fumes Coated Carbon Fiber - Emits noxious fumes