St. Louis Group

FireGard®

St. Louis Group is one of the largest volume suppliers of antimony trioxide (ATO) in the US market. We are vertically integrated with mining and production operations in Bolivia and have contract manufacturing operations in China. Specialty dispersions and masterbatches are available upon request.

  • FireGard® ATO is an effective flame retardant synergist when used in conjunction with suitable brominated or chlorinated compounds or resins.

  • FireGard® HP is an effective high purity flame retardant synergist when used in conjunction with suitable brominated or chlorinated compounds or resins.

  • FireGard® LT is a low tint grade of antimony trioxide, manufactured under controlled conditions and from high purity raw materials.

  • FireGard® XLT is an extra low tint grade of antimony trioxide, manufactured under controlled conditions and from high purity raw materials.

  • FireGard® XF is a sub-micron grade antimony trioxide, manufactured under controlled conditions and from high purity raw materials.

  • FireGard® SA has very low reactivity, low opacity, and affords excellent physical properties in thermoplastics and engineering resins, such as polyamide & polyester. It is not listed under California Prop 65 and has similar effectiveness to ATO.