I’ve just finished printing a PCB vice with ESD conductive jaws for a friend. The jaws will need to be earthed but when they are they will provide some static protection for the PCB whilst its worked on.
The ESD filament is 3DXNano PETG which I got from GlobalFSD who I’ve found to be a good source of speciality filaments as you can buy small quantities at very reasonable prices:
I found the PETG really easy to print, no issues at all. Although it did take some cleaning out of the nozzle afterwards before I could print the white again
This is the design here: