Sabic VALOX™ FR PBT DR48
Plastic Granules
Valox FR PBT DR48 Flame Retardant Grade
VALOX™ FR resin DR48 is a flame-retardant PBT compound, 17% glass-filled for superior strength. It offers excellent chemical resistance and achieves top UL94 ratings (V-0 at 0.90mm & 5VA at 3.0mm). Perfect for demanding electrical components.
Typical property data
Physical Properties
- Specific Gravity: 1.53 (ASTM D792)
- Specific Volume: 0.65 cm³/g (ASTM D792)
- Water Absorption (23°C, 24hrs): 0.07% (ASTM D570)
- Mold Shrinkage (Flow, 1.5–3.2 mm): 0.4–0.6% (SABIC Method)
- Mold Shrinkage (Flow, 3.2–4.6 mm): 0.6–0.9% (SABIC Method)
- Mold Shrinkage (X-Flow, 1.5–3.2 mm): 0.5–0.8% (SABIC Method)
- Mold Shrinkage (X-Flow, 3.2–4.6 mm): 0.8–1.1% (SABIC Method)
Mechanical Properties
- Tensile Stress (Break, Type I, 5 mm/min): 93 MPa (ASTM D638)
- Flexural Stress (Break, 1.3 mm/min, 50 mm span): 140 MPa (ASTM D790)
- Flexural Modulus (1.3 mm/min, 50 mm span): 5200 MPa (ASTM D790)
- Hardness (Rockwell R): 118 (ASTM D785)
Impact Properties
- Izod Impact (Unnotched, 23°C): 500 J/m (ASTM D4812)
- Izod Impact (Notched, 23°C): 49 J/m (ASTM D256)
Thermal Properties
- Heat Deflection Temperature (HDT, 0.45 MPa, 6.4 mm, Unannealed): 210°C (ASTM D648)
- Heat Deflection Temperature (HDT, 1.82 MPa, 6.4 mm, Unannealed): 182°C (ASTM D648)
- Coefficient of Thermal Expansion (CTE, -40°C to 40°C, Flow): 1.98×10−51.98 \times 10^{-5} 1/°C (ASTM E831)
- Coefficient of Thermal Expansion (CTE, 60°C to 138°C, Flow): 1.98×10−51.98 \times 10^{-5} 1/°C (ASTM E831)
- Relative Temperature Index (Electrical): 120°C (UL 746B)
- Relative Temperature Index (Mechanical w/Impact): 120°C (UL 746B)
- Relative Temperature Index (Mechanical w/o Impact): 140°C (UL 746B)
Electrical Properties
- Volume Resistivity: 1.0×10151.0 \times 10^{15} Ω·cm (ASTM D257)
- Dielectric Strength (In Air, 3.2 mm): 18.8 kV/mm (ASTM D149)
- Dielectric Strength (In Oil, 1.6 mm): 25 kV/mm (ASTM D149)
- Relative Permittivity (100 Hz): 3.6 (ASTM D150)
- Relative Permittivity (1 MHz): 3.4 (ASTM D150)
- Dissipation Factor (100 Hz): 0.002 (ASTM D150)
- Dissipation Factor (1 MHz): 0.016 (ASTM D150)
- Arc Resistance (Tungsten): PLC Code 6 (ASTM D495)
- Hot Wire Ignition: PLC Code 3 (UL 746A)
- High Voltage Arc Tracking Rate: PLC Code 4 (UL 746A)
- High Ampere Arc Ignition (Surface): PLC Code 0 (UL 746A)
- Comparative Tracking Index (UL): PLC Code 3 (UL 746A)
Flame Characteristics
- UL Recognized Flame Class Rating (94V-0): 0.9 mm (UL 94)
- UL Recognized Flame Class Rating (94-5VA): 3.0 mm (UL 94)
- Oxygen Index (LOI): 29% (ASTM D2863)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 3–4 hours (Cumulative: 12 hours)
- Maximum Moisture Content: 0.02%
- Melt Temperature: 250–265°C
- Nozzle Temperature: 245–260°C
- Front Zone Temperature: 250–265°C
- Middle Zone Temperature: 245–260°C
- Rear Zone Temperature: 240–255°C
- Mold Temperature: 65–90°C
- Back Pressure: 0.3–0.7 MPa
- Screw Speed: 50–80 rpm
- Shot to Cylinder Size: 40–80%
- Vent Depth: 0.025–0.038 mm
Features & Benefits
Superior Flame Retardancy & Safety
This grade delivers reliable UL94 V-0 and 5VA ratings, ensuring critical fire safety in compact, miniaturized electronic designs and protecting both your product and end-users.
Exceptional Strength & Durability
Reinforced with 17% glass fibers, VALOX DR48 provides high rigidity and impact resistance, resulting in robust components that withstand physical stress and last longer.
Reliable Electrical Insulation
With high volume resistivity and dielectric strength, it acts as an effective insulator, preventing electrical failures in connectors and switches for consistent performance.
Use & Application
- Electrical Connectors
- Bobbins and Coil Formers
- Switches and Circuit Breakers