EcoFlame S-338 is extremely effective as a flame retardant additive with premium performance in polycarbonate at very low additive levels. EcoFlame S-338 has been found to be an effective flame retardant in polycarbonate at use levels as low as 0.06%~0.08% by weight. It is chemically and thermally stable to temperatures greater than 450°C, making it suitable for use in engineering resins that require high provides excellent performance without affecting the processibility of the resin.

One advantage of the low use levels necessary to provide effective flame retardance is that EcoFlame S-338 can be formulated to produce optically-clear, haze-free grades of polycarbonate for extrusion and molding. What's more, EcoFlame S-338 additive does not contain bromine or chlorine and has been found effective as a flame retardant without the use of synergists.

For most effective incorporation it is recommended that the additive be initially dispersed into a 10% or more masterbatch and then compounded into the final plastic blend. Dispersion can be achieved effectively with typical polycarbonate processing equipment.