Antimony trioxide and Mg Compounding:PVC COMPOSITES FLAME RETARDANT SK-500

K500 falls into compound flame retardant additives with low-smoke, fireproof and activated characteristics. It is a multiple retardant system with main ingredients of antimony-magnesium. These two elements are mutually cooperative and enhancing each other. It is generally applied to electric wire and cable PVC and soft PVC. It characterizes good flame retardation and smokeproof operations. It is an excellent compound flame retardant and smokeproof additives which optimizes the flame retardation and physical nature. Compound flame retardant comes with outstanding cooperativeness. No change to physical nature of the PVC materials is found when it is applied to PVC in large quantity. The ideal results can be achieved by adding 3-6 doses into the formula. When applied 5 doses to PVC, the oxygen index is as high as 33%. It is the best, safest, high-effective environmental flame retardant additives to be applied to PVC.

：characteristics

   .Compound flame retardant and smokeproof addictives of excellent performance

   . Excellent high heat stability.

   . No residues of smoke and ashes.

   . Appliable to any plastic resins and synthetic rubber

   .Especially better for electric wire/cable PVC

  .Suggested doses: 3-6 phr

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