Normally, you have a choice with PCB prototypes ... to use FR1 phenolic substrate instead of the more common FR4. FR4 uses epoxy which will probably produce some toxic fumes under the laser.
The TPE filament acts as an etch resist, similar to methods using laser printer toner ... which is one of the materials used to make professional flex PCBs. A bit of spray adhesive will hold ...
The company offers PCB depaneling systems integrating CO2 and UV laser types. The main deciding factor when determining which laser to use is the relative ... opinions, and make sure their ...