Valox FR PBT 310SE0 Flame Retardant Grade
Valox 310SE0 is an unreinforced, flame-retardant PBT resin offering superior chemical resistance and UL94V-0@0.71mm & 5VA@3.0mm ratings. It is the ideal material for high-safety, thin-wall electrical components.
Typical property data
Physical Properties
- Specific Gravity: 1.4 (ISO 1183)
- Melt Flow Rate (250°C/2.16 kg): 8.6 g/10 min (ASTM D1238)
- Water Absorption (23°C, saturated): 0.36% (ISO 62-1)
- Moisture Absorption (23°C, 50% RH): 0.08% (ISO 62)
- Density: 1.4 g/cm³ (ISO 1183)
Mechanical Properties
- Tensile Stress (yield): 58 MPa (ISO 527)
- Tensile Stress (break): 40 MPa (ISO 527)
- Tensile Strain (yield): 5% (ISO 527)
- Tensile Strain (break): 18% (ISO 527)
- Tensile Modulus: 2800 MPa (ISO 527)
- Flexural Stress (yield): 90 MPa (ISO 178)
- Flexural Modulus: 2600 MPa (ISO 178)
- Hardness (Rockwell R): 120 (ISO 2039-2)
Impact Properties
- Izod Impact (Notched, 23°C): 5 kJ/m² (ISO 180/1A)
- Izod Impact (Notched, -30°C): 4 kJ/m² (ISO 180/1A)
- Charpy Impact (Notched, 23°C): 5 kJ/m² (ISO 179/2C)
- Charpy Impact (Notched, -30°C): 4 kJ/m² (ISO 179/1eA)
Thermal Properties
- Vicat Softening Temperature (Rate A/50): 212°C (ISO 306)
- Vicat Softening Temperature (Rate B/50): 170°C (ISO 306)
- Heat Deflection Temperature, 1.8 MPa (Edgewise): 60°C (ISO 75/Ae)
- Relative Temperature Index (Electrical): 120°C (UL 746B)
- Thermal Conductivity: 0.24 W/m-°C (ISO 8302)
Electrical Properties
- Dielectric Strength (in air, 3.2 mm): 18.4 kV/mm (ASTM D149)
- Volume Resistivity: >1.E+15 Ω·cm (IEC 60093)
- Surface Resistivity: >1.E+15 Ω (IEC 60093)
- Comparative Tracking Index (CTI): 175 V (IEC 60112)
Flame Characteristics
- UL 94 Flame Class Rating: V-0 at 0.71 mm; 5VA at 3 mm (UL 94)
- Glow Wire Flammability Index: 960°C, passes at 1 mm (IEC 60695-2-12)
- Limiting Oxygen Index (LOI): 30% (ISO 4589)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 3–4 hours
- Melt Temperature: 245–260°C
- Mold Temperature: 50–75°C
- Back Pressure: 0.3–0.7 MPa
- Screw Speed: 50–100 rpm
Features & Benefits
Superior Flame Retardancy
This VALOX FR RESINS 310SE0 achieves top UL94 ratings at thin walls, ensuring component safety and compliance in compact, high-density electrical designs, reducing fire risks.
Excellent Mechanical Strength
With high tensile and flexural strength, PBT 310SE0 provides the durability needed for snap-fits, housings, and structural parts that must withstand assembly stresses and daily use.
Enhanced Processability & Stability
VALOX 310SE0 offers excellent flow for filling thin walls and consistent molding behavior, leading to higher production yields and reduced part defects for cost-effective manufacturing.
Use & Application
- Bobbins (for transformers, relays, and solenoids)
- Keyboards and Key Switches
- Circuit Breakers and Switches
- Appliance Housings
- Thin-Wall Connectors