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Phosphorus-based, halogen-free formulation meeting stringent environmental and regulatory requirements.
Excellent thermal stability up to 300 °C, enabling compatibility with high-temperature polymer processing.
Low smoke density and minimal toxic gas emission during combustion, enhancing fire safety in enclosed spaces.
Good dispersion and compatibility with engineering thermoplastics including polyamide (PA6, PA66) and polybutylene terephthalate (PBT).
Non-migrating design ensures long-term flame-retardant performance and surface integrity.
Electrical and electronic components requiring UL 94 V-0 rating, such as connectors and housings.
Automotive interior parts including dashboard components and seat frames.
Wire and cable jacketing for low-smoke zero-halogen (LSZH) applications.
Industrial enclosures and 3D-printed functional prototypes demanding flame resistance without halogens.
Consumer electronics casings where RoHS, REACH, and UL compliance are mandatory.
| Chemical Type | Organophosphorus compound |
| Product Form | Free-flowing white granules |
| Appearance | Off-white to light beige granules |
| Density | 1.55–1.65 g/cm³ |
| Decomposition Onset Temperature | ≥280 °C (TGA, 10 °C/min, N₂) |
| Moisture Content | ≤0.2 wt% (by Karl Fischer titration) |
| Primary Applications | Flame retardancy for PA6, PA66, PBT, and PC/ABS blends |
| Key Compliance Standards | UL 94 V-0 (at ≥15 wt% loading), RoHS 2015/863/EU, REACH SVHC-free |
Q1: What types of polymers is FRX-100 compatible with?
A: FRX-100 is primarily designed for use in thermoplastic elastomers (TPEs), thermoplastic polyurethanes (TPUs), and certain engineering thermoplastics where halogen-free flame retardancy is required without compromising processability or mechanical performance.
Q2: How does FRX-100 achieve flame retardancy without halogens?
A: FRX-100 functions through a condensed-phase mechanism, promoting char formation on the polymer surface during thermal decomposition. This char layer acts as a physical barrier that insulates the underlying material and limits fuel release and heat feedback.
Q3: Does FRX-100 affect the processing or end-use properties of the compound?
A: When properly dispersed, FRX-100 typically maintains good compatibility with host resins and shows minimal impact on melt flow, tensile strength, or flexibility—especially at recommended dosage levels. Its low volatility also supports stable extrusion and injection molding behavior.
Q4: Is FRX-100 suitable for applications requiring regulatory compliance for restricted substances?
A: Yes—FRX-100 contains no halogens, heavy metals, or intentionally added REACH SVHC substances. It is formulated to support compliance with global environmental and safety directives where halogen-free alternatives are mandated or preferred.
Q5: What is the typical dosage range for effective flame retardancy?
A: Effective loading generally ranges from 0.1% to 2% by weight, depending on the base polymer, desired fire performance level (e.g., UL 94 V-0), and presence of synergists or other additives. Optimization is recommended via small-scale trials under actual processing conditions.
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