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High-efficiency phosphorus-based flame retardancy meeting UL 94 V-0 at low loading levels in PC/ABS blends.
Excellent thermal stability compatible with standard PC/ABS processing temperatures (up to 260 °C).
Maintains good mechanical properties—including impact strength and ductility—after flame-retardant modification.
Low volatility and minimal plate-out, ensuring stable extrusion and injection molding performance.
Halogen-free formulation supporting modern environmental and regulatory requirements (e.g., RoHS, REACH).
Electrical enclosures for power supplies, adapters, and industrial control units.
Housings for office equipment including printers, scanners, and multifunction devices.
Consumer electronics casings such as set-top boxes, routers, and audiovisual components.
Automotive interior parts requiring flame-retardant polymers with aesthetic and dimensional stability.
IT infrastructure components including server rack accessories and network interface housings.
| Chemical Type | Organophosphorus flame retardant (Resorcinol bis(diphenyl phosphate), RDP) |
| Product Form | Pale yellow to light amber viscous liquid |
| Appearance | Clear, homogeneous liquid without sediment or haze |
| Phosphorus Content | ~9.5 wt% |
| Density (20 °C) | 1.32–1.34 g/cm³ |
| Viscosity (100 °C) | 200–400 mPa·s |
| Flash Point (PMCC) | ≥270 °C |
| Primary Applications | Flame retardant additive for PC, PC/ABS, and PC/polyester blends |
Q1: What is the primary function of Fyrolflex RDP in PC/ABS blends?
A: Fyrolflex RDP is an organophosphorus flame retardant specifically designed to provide efficient halogen-free flame retardancy in polycarbonate (PC) and PC/ABS blends, helping formulations meet common industry fire safety standards such as UL 94 V-0 at typical wall thicknesses without significantly compromising mechanical or thermal performance.
Q2: How does Fyrolflex RDP compare to brominated flame retardants in PC/ABS applications?
A: Unlike brominated alternatives, Fyrolflex RDP offers a halogen-free solution with favorable environmental and regulatory profiles, while maintaining good compatibility and processability in PC/ABS systems. It typically delivers balanced flame retardancy and physical properties, supporting sustainability goals without requiring major reformulation efforts.
Q3: Is Fyrolflex RDP suitable for injection molding of thin-walled PC/ABS parts?
A: Yes — Fyrolflex RDP demonstrates good thermal stability and melt compatibility during standard PC/ABS processing conditions, including injection molding. It supports consistent flame retardant performance across varying part geometries and wall thicknesses commonly encountered in automotive interior and electronics housings.
Q4: What are the key handling and storage recommendations for this additive?
A: Fyrolflex RDP should be stored in a cool, dry place away from direct sunlight and strong oxidizing agents. It is supplied as a stable liquid and is generally compatible with standard PC/ABS compounding equipment; however, pre-drying of the base polymer remains essential to avoid hydrolysis-related degradation during processing.
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