Flame Retardant Filaments
These grades are made using UL-rated Flame Retardant (FR) polymers. FR grades of plastic can be placed into two basic categories - those that have been formulated with additives to make them flame retardant, and those that are inherently flame retardant without the addition of additives.
Grades formulated to be flame retardant: FR-ABS, FR-PC/ABS, and FR-TPU.
Grades that are inherently flame retardant based on the nature of the polymer itself: PEKK, PEEK, PEI, PPSU, PPS, and PVDF.