Use regular PETG-settings with the following modifications:
Print temp: 255-265°C Bed temp: No with special surface, or up to 80°C on glass
Print speed: 45-55 mm/s
Make sure the material is dry when using it, for maximum performance. If it has been exposed to normal air humidity for a longer period of time, dry in at 65°C for about 4 hours in an oven or similar.
Put material flow/extrusion multiplier to 98%/0.98 to avoid problems with extrusion.
Use 0% fan if possible, maximum fan should be 40%.
Note! Material requires abrasion resistant nozzle like CC core, ruby tipped or steel nozzle.