Plastic Granules
Valox FR PBT 362 Flame Retardant Grade
VALOX™ FR Resin 362 is a flame-retardant, unreinforced PBT plastic resin. It offers superior electrical properties and a UL94 V-0 rating, making it ideal for critical electrical components like relay sockets and switches.
Associated Documents
TDS Europe
Typical property data
Physical Properties
- Density: 1.43 g/cm³ (ISO 1183)
- Mold Shrinkage on Tensile Bar (Flow): 1.1 – 1.8% (SABIC method)
- Mold Shrinkage on Tensile Bar (Cross-Flow): 0.9 – 1.8% (SABIC method)
- Water Absorption (23°C, Saturated): 0.35% (ISO 62-1)
- Moisture Absorption (23°C, 50% RH): 0.08% (ISO 62)
- Melt Volume Rate (MVR at 250°C/2.16 kg): 9 cm³/10 min (ISO 1133)
Mechanical Properties
- Tensile Stress (Yield, 50 mm/min): 45 MPa (ISO 527)
- Tensile Stress (Break, 50 mm/min): 35 MPa (ISO 527)
- Tensile Strain (Yield, 50 mm/min): 5% (ISO 527)
- Tensile Strain (Break, 50 mm/min): 15% (ISO 527)
- Tensile Modulus (1 mm/min): 2100 MPa (ISO 527)
- Flexural Stress (Yield, 2 mm/min): 65 MPa (ISO 178)
- Flexural Modulus (2 mm/min): 2000 MPa (ISO 178)
- Ball Indentation Hardness (H358/30): 99 MPa (ISO 2039-1)
Impact Properties
- Charpy Impact (Unnotched, 23°C): 85 kJ/m² (ISO 179/2C)
- Izod Impact (Unnotched, +23°C): NB (No Break) (ISO 180/1U)
- Izod Impact (Unnotched, -30°C): NB (No Break) (ISO 180/1U)
- Izod Impact (Notched, +23°C): 5 kJ/m² (ISO 180/1A)
- Izod Impact (Notched, -30°C): 4 kJ/m² (ISO 180/1A)
Thermal Properties
- Thermal Conductivity: 0.18 W/m-°C (ISO 8302)
- Coefficient of Thermal Expansion (Flow, 23°C – 80°C): 1.2E-04 1/°C (ISO 11359-2)
- Coefficient of Thermal Expansion (Cross-Flow, 23°C – 80°C): 1.3E-04 1/°C (ISO 11359-2)
- Vicat Softening Temperature (Rate B/50): 145°C (ISO 306)
- Vicat Softening Temperature (Rate B/120): 147°C (ISO 306)
- HDT/Be (0.45 MPa): 120°C (ISO 75/Be)
- HDT/Ae (1.8 MPa): 50°C (ISO 75/Ae)
Electrical Properties
- Volume Resistivity: >1.E+15 Ω·cm (IEC 60093)
- Surface Resistivity: >1.E+15 Ω (IEC 60093)
- Dielectric Strength (0.8 mm): 28 kV/mm (IEC 60243-1)
- Dielectric Strength (1.6 mm): 23 kV/mm (IEC 60243-1)
- Dielectric Strength (3.2 mm): 13 kV/mm (IEC 60243-1)
- Relative Permittivity (50/60 Hz): 2.9 (IEC 60250)
- Relative Permittivity (1 MHz): 2.6 (IEC 60250)
- Dissipation Factor (50/60 Hz): 0.001 (IEC 60250)
- Dissipation Factor (1 MHz): 0.007 (IEC 60250)
- Comparative Tracking Index (CTI): 600 V (IEC 60112)
Flame Characteristics
- UL Flame Class Rating (94V-0): 1.5 mm (UL 94)
- Glow Wire Flammability Index (850°C): Passes at 1 mm (IEC 60695-2-12)
- Glow Wire Flammability Index (960°C): Passes at 1.6 mm (IEC 60695-2-12)
- Oxygen Index (LOI): 25% (ISO 4589)
Injection Molding
- Drying Temperature: 110 – 120°C
- Drying Time: 2 – 4 hours
- Maximum Moisture Content: 0.02%
- Melt Temperature: 250 – 270°C
- Nozzle Temperature: 240 – 260°C
- Mold Temperature: 40 – 100°C
Features & Benefits
Superior Flame Retardancy & Safety
This VALOX 362 resin achieves a UL94 V-0 rating at 1.5mm without blooming, ensuring long-term safety and reliability in your electrical housings and components.
Excellent Electrical Insulation
With a high comparative tracking index (CTI 600V) and strong dielectric strength, it prevents electrical failures, making it perfect for high-voltage environments.
Reliable Processing & Stability
Featuring low moisture absorption and predictable mold shrinkage, VALOX FR Resin 362 ensures dimensional stability and eases manufacturing for consistent, high-quality parts.
Use & Application
- Relay Sockets
- Switches
- Electrical Connectors
- Circuit Breaker Components
- Other Critical Electrical Insulation Parts