
Valox FR PBT 771 Flame Retardant Grade
VALOX™ FR resin 771 is a 35% mineral/glass-filled, flame-retardant PBT grade. It offers superior chemical resistance, a UL94 V-0 rating at 0.75mm, and exceptional protection against electrical arcing, making it ideal for demanding electrical components.
- Character: 35% mineral/glass filled, flame retardant
Key technical data
- Tensile Strength (Break): 72 MPa
- Flexural Modulus: 5860 MPa
- Notched Izod Impact (23°C): 42 J/m
- Heat Deflection Temperature (HDT @ 1.82 MPa): 196°C
- Relative Temp Index (Electrical): 140°C
- Relative Temp Index (Mechanical w/ Impact): 125°C
- Ball Pressure Test (175°C): Passes
- Comparative Tracking Index (CTI): 600 V (PLC 0)
- Arc Resistance: 4 (RLC Code)
- Volume Resistivity: >1E+15 Ω·cm
- UL 94 Flame Class Rating: V-0 @ 0.75 mm, 5VA @ 2.0 mm
- Glow Wire Ignitability (3.0mm): 800°C
- Specific Gravity: 1.7
- Mold Shrinkage (Flow): 0.65 – 0.85%
Application
- Circuit Breakers and Switches
- Electrical Connectors
- Motor Housings and Commutators
- Power Distribution Components
- Automotive Electrical Systems
- Appliance Controllers and Relays
Features & Benefits

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