St. Louis Group

PhosGard®

St. Louis Group offers a wide range of highly effective liquid & powder phosphorus based flame retardants. Specialty dispersions, blends, and masterbatches are available upon request.

  • PhosGard® APP-XL is a large particle crystal phase II modified ammonium polyphosphate intumescent flame retardant for water-based coatings, textiles, adhesives, and polyurethanes.

  • PhosGard® MPP-Poly is a high purity melamine polyphosphate with excellent thermal stability for water-based coatings, polyurethanes, thermosets, and thermoplastics.

  • PhosGard® MPP-Pyro is a high purity melamine pyrophosphate for water-based coatings, intumescent coatings, polyurethanes, thermosets, and polyolefins.

  • PhosGard® 200 is an effective halogen-free flame retardant with good hydrolytic stability and high heat resistance. It is recommended for PC, PC/ABS, PPO/HIPS, and ABS applications.

  • PhosGard® 300 is an effective flame retardant powder solution for thermoset applications, including SMC and BMC.

  • PhosGard® 325 is an effective flame retardant powder solution for thermoset applications, including SMC and BMC.

  • PhosGard® 600 is an effective non-halogenated flame retardant for engineering resins, thermosets, adhesives, and coatings.

  • PhosGard® 700 is an effective non-halogenated flame retardant for polyolefins, adhesives, and coatings.