Sabic VALOX™ FR PBT V4760
Plastic Granules
Valox FR PBT V4760 Flame Retardant Grade
VALOX™ FR resin V4760 is a 30% glass-filled, flame-retardant PBT offering high flow and excellent chemical resistance. It achieves top UL94V-0 flame rating at a thin 0.28mm, ideal for demanding electrical components.
Typical property data
Physical Properties
- Density: 1.67 g/cm³ (ASTM D792)
- Mold Shrinkage, Flow: 0.3% (SABIC method)
- Mold Shrinkage, Cross-flow: 0.7% (SABIC method)
- Water Absorption (23°C, 24 hrs): 0.24% (SABIC method)
- Melt Volume Rate (MVR) at 250°C/5.0 kg: 28 cm³/10 min (ISO 1133)
Mechanical Properties
- Tensile Stress, Yield (5 mm/min): 126 MPa (ISO 527)
- Tensile Stress, Break (5 mm/min): 126 MPa (ISO 527)
- Tensile Strain, Yield (5 mm/min): 2.2% (ISO 527)
- Tensile Modulus (1 mm/min): 10,700 MPa (ISO 527)
- Flexural Stress, Break (2 mm/min): 190 MPa (ISO 178)
- Flexural Modulus (2 mm/min): 9,500 MPa (ISO 178)
Impact Properties
- Charpy Impact, Unnotched (23°C): 45 kJ/m² (ISO 179/2C)
- Charpy Impact, Notched (23°C): 8 kJ/m² (ISO 179/2C)
- Charpy Impact, Notched (-30°C): 8 kJ/m² (ISO 179/2C)
- Izod Impact, Unnotched (23°C): 38 kJ/m² (ISO 180/1U)
- Izod Impact, Notched (23°C): 7 kJ/m² (ISO 180/1A)
- Izod Impact, Notched (-30°C): 8 kJ/m² (ISO 180/1A)
Thermal Properties
- Vicat Softening Temperature, Rate B/50: 202°C (ISO 306)
- Heat Deflection Temperature (HDT) at 1.82 MPa, 6.4 mm: 211°C (ASTM D648)
- Coefficient of Thermal Expansion (CTE), Flow (-40°C to 40°C): 2.1E-05 1/°C (ISO 11359-2)
- Coefficient of Thermal Expansion (CTE), Cross-flow (-40°C to 40°C): 7.1E-05 1/°C (ISO 11359-2)
- Relative Temperature Index, Electrical: 140°C (UL 746B)
- Relative Temperature Index, Mechanical with Impact: 130°C (UL 746B)
- Relative Temperature Index, Mechanical without Impact: 140°C (UL 746B)
Electrical Properties
- Volume Resistivity: 2.2E+15 Ω·cm (ASTM D257)
- Surface Resistivity: 2.6E+16 Ω (ASTM D257)
- Comparative Tracking Index (CTI): 250 V (IEC 60112)
Flame Characteristics
- UL 94 Flame Class Rating: V-0 at 0.28 mm, 5VA at 1.5 mm (UL 94)
- Glow Wire Flammability Index: Passes at 960°C (0.8 mm) (IEC 60695-2-12)
- Glow Wire Ignitability Temperature:
- 0.4 mm: 775°C (IEC 60695-2-13)
- 0.8 mm: 725°C (IEC 60695-2-13)
- 1.0 mm: 700°C (IEC 60695-2-13)
- 2.0 mm: 725°C (IEC 60695-2-13)
- 3.0 mm: 775°C (IEC 60695-2-13)
- Oxygen Index (LOI): 30% (ISO 4589)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 3–4 hours (Cumulative: 12 hours max)
- Maximum Moisture Content: 0.02%
- Melt Temperature: 255–275°C
- Mold Temperature: 65–90°C
- Back Pressure: 0.3–0.7 MPa
- Screw Speed: 50–80 rpm
- Vent Depth: 0.025–0.038 mm
Features & Benefits
Superior Thin-Wall Flame Retardancy
With a UL94 V-0 rating at just 0.28mm, this VALOX V4760 resin enables safer, lighter, and more compact designs for electrical parts, reducing material usage without compromising safety.
Excellent Flow for Complex Molds
The high flow characteristic ensures easy filling of intricate and thin-walled molds. This results in fewer defects, higher production yields, and the ability to design more complex components.
Robust Mechanical & Thermal Performance
This 30% glass-filled grade provides high strength, stiffness, and heat resistance (HDT 207°C). It ensures long-term reliability and stability for components in demanding operating environments.
Use & Application
- Electrical Connectors
- Bobbins and Coil Formers
- Switches and Circuit Breakers
- Other Thin-Wall Electrical Components