Black PLA is the filament we ship more than any other. It's the default for prototypes, enclosures, jigs and fixtures — anything that needs to look finished straight off the bed.
Like all Coex Standard PLA, it's made in our Green Bay, Wisconsin facility from virgin NatureWorks Ingeo 4043D resin — colorant only, no fillers — and held to ±0.03mm diameter on every spool. Our Standard PLA holds its own against most brands' PLA+.
Slicer profile: the COEX PLA profile for 1.75mm filament is built into OrcaSlicer 2.3.2 and later. In Filament Selection, choose vendor COEX 3D, then COEX PLA.