Clariant Corp.'s (Sulzbach, Germany) new, non-halogenated flame retardants for glass-fiber reinforced thermoplastics, Exolit OP 1311 (TP) and 1312 (TP), are based on metal phosphinates and have minimal impact on mechanical properties of compounds, in part because a much smaller quantity than most retardants is required to meet commonly applied standards, says the company. Exolit OP 1312 is stabilized for polyamide (nylon) 6.6 used to mold complex shapes at high temperatures and injection speeds.