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Fyrol® HF-9

Fyrol® HF-9 is a low viscosity halogen-free phosphorus ester flame retardant. It is highly effective in producing flame retardant flexible polyurethane foam that meets both Cal TB 117 and MVSS-302 criteria. Fyrol® HF-9 is suitable for most commercial production systems.

Key Benefits

  • Halogen-free flame retardant for Polyurethanes
  • Low viscosity


Specific Gravity
Phosphorus Content
Viscosity mPa.s - 25°C

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