Sabic VALOX™ FR PBT 365
Plastic Granules
Valox FR PBT 365 Flame Retardant Grade
Valox FR PBT 365 is an unreinforced, opaque, flame-retardant and UL94 V-0 rated PBT plastic resin. Known for its exceptional chemical resistance, dimensional stability, and thermal performance, it’s the go-to solution for industries demanding reliable and durable materials for critical applications.
Associated Documents
TDS Americas
Typical property data
Physical Properties
- Specific Gravity: 1.33 (ASTM D792)
- Specific Volume: 0.75 cm³/g (ASTM D792)
- Water Absorption (23°C/24hrs): 0.14% (ASTM D570)
- Water Absorption (23°C/Saturated): 0.6% (ASTM D570)
- Mold Shrinkage, Flow (0.75-2.3 mm): 0.8 – 1.1% (SABIC method)
- Mold Shrinkage, Flow (2.3-4.6 mm): 1 – 1.4% (SABIC method)
- Mold Shrinkage, X-Flow (0.75-2.3 mm): 0.9 – 1.3% (SABIC method)
- Mold Shrinkage, X-Flow (2.3-4.6 mm): 1.2 – 1.6% (SABIC method)
Mechanical Properties
- Tensile Stress, Yield: 41 MPa (ASTM D638)
- Tensile Stress, Break: 41 MPa (ASTM D638)
- Tensile Strain, Break: 120% (ASTM D638)
- Flexural Stress, Yield: 68 MPa (ASTM D790)
- Flexural Stress, Break: 68 MPa (ASTM D790)
- Flexural Modulus: 2240 MPa (ASTM D790)
- Hardness, Rockwell R: 115 (ASTM D785)
Impact Properties
- Izod Impact Strength, Notched (23°C): 640 J/m (ASTM D256)
- Izod Impact Strength, Notched (-30°C): 192 J/m (ASTM D256)
- Izod Impact Strength, Notched (-40°C): 170 J/m (ASTM D256)
- Gardner Impact Strength (23°C): 37 J (ASTM D3029)
Thermal Properties
- Heat Deflection Temperature (HDT) at 0.45 MPa: 129°C (ASTM D648)
- Heat Deflection Temperature (HDT) at 1.82 MPa: 121°C (ASTM D648)
- Coefficient of Thermal Expansion (CTE, -40°C to 40°C, flow): 6.84E-05 1/°C (ASTM E831)
- Coefficient of Thermal Expansion (CTE, -40°C to 95°C, flow): 7.92E-05 1/°C (ASTM E831)
- Coefficient of Thermal Expansion (CTE, 60°C to 138°C, flow): 8.28E-05 1/°C (ASTM E831)
- Relative Temperature Index (Electrical): 105°C (UL 746B)
- Relative Temperature Index (Mechanical with Impact): 105°C (UL 746B)
- Relative Temperature Index (Mechanical without Impact): 105°C (UL 746B)
Electrical Properties
- Dielectric Strength (3.2 mm, in oil): 12 kV/mm (ASTM D149)
- Relative Permittivity (100 Hz): 8.5 (ASTM D150)
- Relative Permittivity (1 MHz): 5.7 (ASTM D150)
- Dissipation Factor (100 Hz): 0.002 (ASTM D150)
- Dissipation Factor (1 MHz): 0.03 (ASTM D150)
- Arc Resistance, Tungsten: PLC Code 6 (ASTM D495)
- Hot Wire Ignition: PLC Code 2 (UL 746A)
- High Voltage Arc Tracking Rate: PLC Code 3 (UL 746A)
- High Ampere Arc Ignition (Surface): PLC Code 3 (UL 746A)
- Comparative Tracking Index (UL): PLC Code 3 (UL 746A)
Flame Characteristics
- UL Recognized, 94V-0 Flame Class Rating: 0.76 mm (UL 94)
- UL Recognized, 94-5VA Flame Class Rating: 2.2 mm (UL 94)
- Oxygen Index (LOI): 28.8% (ASTM D2863)
- UV-Light and Water Exposure/Immersion: F2 (UL 746C)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 3 – 4 hours
- Cumulative Drying Time: 12 hours
- Maximum Moisture Content: 0.02%
- Melt Temperature: 250 – 265°C
- Nozzle Temperature: 245 – 260°C
- Front Zone (Zone 3) Temperature: 250 – 265°C
- Middle Zone (Zone 2) Temperature: 245 – 260°C
- Rear Zone (Zone 1) Temperature: 240 – 255°C
- Mold Temperature: 50 – 75°C
- Back Pressure: 0.3 – 0.7 MPa
- Screw Speed: 50 – 100 rpm
- Shot to Cylinder Size: 40 – 80%
- Vent Depth: 0.025 – 0.038 mm
Features & Benefits
Superior Flame Resistance
With a UL94 V-0 flame rating at thicknesses as low as 0.76 mm, Valox FR PBT 365 ensures maximum fire safety. This makes it ideal for fire-sensitive applications like electrical components and enclosures.
Outstanding Dimensional Stability
With low water absorption (0.14% at 23°C/24 hrs) and tight mold shrinkage range (as low as 0.8% in flow), this material delivers consistent performance, even in humid or variable environments. It’s perfect for precision parts requiring tight tolerances.
Exceptional Impact Strength
Engineered for durability, FR PBT 365 offers exceptional impact resistance, with Izod Notched Impact Strength of 640 J/m at 23°C and reliable toughness even at sub-zero temperatures (-40°C).
Use & Application
- Electrical Connectors & Sockets
- Circuit Breakers and Switches
- Automotive Sensor Housings
- Appliance Components (e.g., Motor End Caps)
- Industrial Control System Parts