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Halogen-free formulation compliant with RoHS, REACH, and UL 94 V-0 requirements for polyamide systems.
Excellent thermal stability up to 320 °C, enabling seamless integration into high-temperature polyamide processing (e.g., PA6, PA66).
Low migration tendency and superior long-term flame-retardant performance retention under thermal aging and humidity exposure.
Good compatibility with polyamide resins, minimizing impact on mechanical properties such as tensile strength and impact resistance.
Non-corrosive to processing equipment and does not generate acidic or toxic decomposition gases during combustion.
Electrical and electronic components: connectors, circuit breakers, and insulating housings.
Automotive under-hood parts: sensor housings, fuse boxes, and engine control modules.
Industrial machinery components requiring UL 94 V-0 rated flame retardancy in polyamide matrices.
Railway interior parts compliant with EN 45545-2 fire safety standards.
Consumer appliance housings where halogen-free compliance is mandated by OEM specifications.
| Chemical Type | Phosphorus-nitrogen synergistic intumescent system |
| Product Form | Free-flowing white granules |
| Appearance | Off-white to light beige granules, uniform particle size |
| Density | 1.45–1.55 g/cm³ (at 23 °C) |
| Moisture Content | ≤ 0.3 wt% (by Karl Fischer titration) |
| Thermal Decomposition Onset | ≥ 300 °C (by TGA, 10 °C/min, N₂ atmosphere) |
| Recommended Loading Range | 12–18 wt% in PA6/PA66 (varies by grade and application) |
| Storage Conditions | Sealed container, dry environment (< 60% RH), ambient temperature |
Q1: What polyamide grades is Deflamer LFR-8003 compatible with?
A: Deflamer LFR-8003 is specifically engineered for use in PA6, PA66, and their copolymer variants. It demonstrates excellent dispersion and interfacial compatibility in both unfilled and glass-fiber-reinforced polyamide systems, supporting stable melt processing and consistent flame-retardant performance.
Q2: How does LFR-8003 achieve flame retardancy without halogenated compounds?
A: LFR-8003 operates via an intumescent mechanism—promoting the formation of a thermally stable, insulating char layer upon exposure to heat or flame. This char barrier limits fuel release, oxygen diffusion, and heat transfer, enabling effective flame suppression while eliminating halogen-related environmental and corrosion concerns.
Q3: Does LFR-8003 affect mechanical properties or processing stability of polyamide compounds?
A: When properly compounded, LFR-8003 delivers balanced performance—maintaining good tensile strength, impact resistance, and thermal stability. It exhibits low volatility and minimal plate-out tendency during extrusion and injection molding, supporting robust processability across standard polyamide processing conditions.
Q4: What is the typical dosage range for achieving UL94 V-0 rating in thin-wall polyamide parts?
A: Dosage depends on base resin, filler content, part geometry, and target flame class. For UL94 V-0 at 1.6 mm thickness in standard PA66 GF30, LFR-8003 is typically used at low concentrations—generally ranging from 0.1% to 2% by weight—and often optimized in combination with synergistic additives to maximize efficiency.
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