SF-400 is an eco-friendly silicon-based flame retardant synergist. It exhibits excellent synergistic effects with halogen-based flame retardants and provides smoke suppression. It fully complies with EU environmental regulations such as the 2002/95/EC Restriction of Hazardous Substances (RoHS) Directive and REACH.

By replacing antimony trioxide with FR-0520, the flame-retardant rating of products remains uncompromised, while smoke emission during combustion is significantly reduced. This product also enhances environmental sustainability and cost efficiency compared to traditional antimony trioxide, making it an ideal substitute.