Covestro Makrolon® DQ5962 FR PC Resin
Makrolon DQ5962 FR Polycarbonate Granules Flame Retardant Grade
Makrolon® DQ5962 FR is a flame-retardant, UV-stabilized polycarbonate resin engineered for exceptional light diffusion and processability. With an MVR of 5.0 cm³/10 min (300°C/1.2 kg), it balances flow efficiency and safety for demanding applications.
Plastic Granules
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ISO TDS
MSDS
Typical property data
Physical Properties (Rheological)
- Melt Volume-Flow Rate (300 °C/1.2 kg): 5.0 cm³/10 min (ISO 1133)
- Melt Viscosity (50 s⁻¹ at 260 °C): 1840 Pa·s (ISO 11443-A)
- Melt Viscosity (50 s⁻¹ at 300 °C): 690 Pa·s (ISO 11443-A)
- Melt Viscosity (1000 s⁻¹ at 260 °C): 500 Pa·s (ISO 11443-A)
- Melt Viscosity (1000 s⁻¹ at 300 °C): 240 Pa·s (ISO 11443-A)
Mechanical Properties (23 °C/50% Relative Humidity)
- Tensile Modulus (1 mm/min): 2300 MPa (ISO 527-1/-2)
- Yield Stress (50 mm/min): 64 MPa (ISO 527-1/-2)
- Yield Strain (50 mm/min): 6% (ISO 527-1/-2)
- Nominal Strain at Break (50 mm/min): 42% (ISO 527-1/-2)
- Stress at Break (50 mm/min): 52 MPa (ISO 527-1/-2)
- Strain at Break (50 mm/min): 73% (ISO 527-1/-2)
- Izod Notched Impact Strength (23 °C, 3 mm): 12 kJ/m² (ISO 21305 based on ISO 180/A)
- Ball Indentation Hardness: >120 N/mm² (ISO 2039-1)
Thermal Properties
- Temperature of Deflection under Load (1.80 MPa): 123 °C (ISO 75-1/-2)
- Temperature of Deflection under Load (0.45 MPa): 138 °C (ISO 75-1/-2)
- Vicat Softening Temperature (50 N; 50 °C/h): 143 °C (ISO 306)
- Burning Behavior (0.8 mm): UL 94 V-0 (UL 94)
- Burning Behavior (3.0 mm): UL 94 5VA (UL 94)
- Glow Wire Flammability Index (GWFI, 0.75 mm/1.5 mm/3.0 mm): 960 °C (IEC 60695-2-12)
- Glow Wire Ignition Temperature (GWIT, 0.75 mm/1.5 mm/3.0 mm): 850 °C (IEC 60695-2-13)
Other Properties (23 °C)
- Density: 1190 kg/m³ (ISO 1183-1)
- Luminous Transmittance (1 mm): 67% (ISO 13468-2)
- Luminous Transmittance (2 mm): 54% (ISO 13468-2)
- Luminous Transmittance (3 mm): 46% (ISO 13468-2)
- Luminous Transmittance (4 mm): 41% (ISO 13468-2)
- Half Power Angle (1 mm): 44° (Covestro Test)
- Half Power Angle (3 mm): 58° (Covestro Test)
Processing and Drying Conditions
- Melt Temperature (Standard): 300 °C
- Melt Temperature Range: 280–320 °C
- Barrel Temperature (Rear/Middle/Front/Nozzle): 250–300 °C
- Mold Temperature: 80–120 °C (ISO 294)
- Injection Velocity: 200 mm/s (ISO 294)
- Hold Pressure (injection %): 50–75%
- Drying Temperature: 120 °C
- Drying Time: 2–3 hours
- Moisture Content (Max): ≤0.02%
Features & Benefits
Superior Flame Resistance
It achieves UL 94 V-0 (0.8 mm) and 5VA (3.0 mm) ratings, ensuring compliance in electronics and automotive interiors where fire safety is non-negotiable.
Optimized Light Diffusion
It delivers luminous transmittance up to 67% (1 mm) with wide half-power angles (44°–58°), eliminating hotspots in LED fixtures and displays.
Thermal & Processing Stability
Vicat softening at 143°C and tailored melt viscosity (240–1840 Pa·s) enable consistent injection molding or extrusion of complex, heat-resistant parts.
Use & Applications
- LED Lighting: Diffuser plates, lenses (uniform illumination).
- Electronics: Flame-retardant housings (connectors, power units).
- Transportation: Interior components (overhead panels, trim).
- Extrusion Profiles: Light guides, signage with UV stability.
FAQs
ISO TDS lists V-0 @ 0.8 mm and 5VA @ 3.0 mm. Verify colors/thickness on the current UL Yellow Card.
High light diffusion, UV stabilized, flame retardant, injection/extrusion. Luminous transmittance 67% at 1 mm; half power angle 44° at 1 mm, 58° at 3–4 mm.
Makrolon® DQ5962 FR Related Grades
Disclaimer: Grades below are potential alternatives for comparison only. Not direct drop-in replacements. Typical values from Covestro ISO TDS; verify UL94 colors/thickness on current UL Yellow Card. RoHS/REACH/halogen/PFAS status not confirmed unless report provided.
| Grade | Positioning | UL94 (ISO TDS) | MVR | HDT (1.80 MPa) | Notched Impact (23°C/3mm) | Color | UV / UL 746C f1 |
|---|---|---|---|---|---|---|---|
| DQ5922 FR | Low diffusion; UV; FR | V-0 @0.8mm; 5VA @3.0mm | 5.0 cm³/10min | 121°C | Izod 9C | N/A | Yes / N/A |
| DQ5942 FR | Medium diffusion; UV; FR | V-0 @0.8mm; 5VA @3.0mm | 5.0 cm³/10min | 120°C | Izod 7C | N/A | Yes / N/A |
| 6557 | Medium viscosity; UV; transparent | V-2 @1.5mm; V-0 @3.0mm | 10 cm³/10min | 124°C | Charpy 70P(C); Izod 65P | T/T/O | Yes / N/A |
| 6487 | Medium viscosity; 5VA; UV | V-0 @1.5mm; 5VA @3.0mm | 9.0 cm³/10min | 122°C | Charpy 70P(C); Izod 70P(C) | Opaque | Yes / N/A |
👉 Full Portfolio: Browse all 27+ grades on the Covestro Flame Retardant PC Resin Hub.