RP-TP46 Red Phosphorus Flame Retardant Paste
RP-TP46 is a halogen-free microencapsulated red phosphorus flame retardant paste formulated for polyurethane foams, rubber compounds, coatings and polymer composites. Its oil-based carrier system provides high stability, consistent viscosity and safe, dust-free handling. The fine particle size ensures uniform dispersion, strong flame-retardant efficiency and reliable char formation at low addition levels. RP-TP46 eliminates common powder-based issues such as dusting, phosphine release and sedimentation, making it ideal for liquid-processing environments.
Key Features and Benefits
• Non-dusting paste greatly improves operator safety and plant hygiene.
• ≥40 percent microencapsulated red phosphorus ensures high flame-retardant efficiency.
• Fine particle size (≤15 μm D50) delivers excellent dispersion and uniform performance.
• Stable, non-stratifying paste prevents settling during storage.
• Low white phosphorus content (≤0.005 percent) enhances storage stability and safety.
• High viscosity stability (3,000–7,000 mPa·s) supports accurate and repeatable dosing.
• Halogen-free formulation meets global sustainability and regulatory standards.
• Compatible with PU foams, rubbers, epoxy, phenolic and coating systems.
• Customizable particle size range (1500–2500 mesh) available on request.
Technical Highlights
• Appearance: Red viscous paste.
• Microencapsulated red phosphorus (MRP): ≥40 percent.
• pH: 6.0–8.0 (ASTM E70).
• Particle size (D50): ≤15 μm.
• Particle size (D95): ≤75 μm.
• Viscosity: 3,000–7,000 mPa·s @ 25 °C (Brookfield).
• White phosphorus content: ≤0.005 percent.
• Optional particle sizes: 1500–2500 mesh.
• Density: ~1.3–1.4 g/cm³ (ASTM D792).
• Carrier system: Oil-based matrix.
Download Technical Data Sheet (TDS)
Applications
• Polyurethane foam manufacturing (flexible and rigid foams).
• Plastics compounding for PA, PBT and PET systems requiring liquid-phase dosing.
• Rubber and elastomer production (gaskets, seals, technical rubber parts).
• Industrial coatings including halogen-free and low-smoke systems.
• Adhesives and sealants, especially PU-based systems requiring enhanced fire resistance.
Target Industries
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