VALOX™ FR PBT 357

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SABIC® PC Resin

Valox FR PBT 357 Flame Retardant Grade

Valox FR PBT 357 is a flame-retardant, impact-modified PBT/PC blend. It offers superior chemical resistance and top-tier safety certifications (UL94 V-0 @ 0.63mm & 5VA @ 3.0mm), making it ideal for demanding electrical components.

  • Character: unreinforced, impact modified flame retardant Polybutylene Terephthalate/Polycarbonate (PBT/PC) injection moldable grade.
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Key technical data

  • Tensile Strength at Break: 45 MPa
  • Flexural Modulus: 2060 MPa
  • Notched Izod Impact (23°C): 534 J/m
  • Hardness (Rockwell R): 117
  • HDT @ 1.82 MPa: 99 °C
  • Vicat Softening Temperature (B/50): 134 °C
  • Relative Temperature Index (Elec/Mech w Impact): 120 °C
  • Volume Resistivity: >1.2E+16 Ω·cm
  • Dielectric Strength: 18.5 kV/mm
  • Comparative Tracking Index (CTI): PLC 2
  • UL 94 Rating: V-0 @ 0.63 mm | 5VA @ 3.0 mm
  • Oxygen Index (LOI): 30%
  • Specific Gravity: 1.34
  • Melt Temperature: 250 – 265 °C
  • Mold Temperature: 50 – 75 °C
  • Drying Time: 3-4 hours @ 120°C

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Application

  • Bobbins & Coil Formers
  • Circuit Breakers & Switches
  • Electrical Connectors & Enclosures
  • Sensor Housings & Motor Components

Features & Benefits

Superior Flame Retardant Safety

WitThis FR PBT resin 357 achieves UL94 V-0 at just 0.63mm, allowing for thinner, lighter, and more cost-effective part designs without compromising critical fire safety standards in enclosures and connectors.

Exceptional Toughness and Impact Strength

The material is impact-modified, providing high ductility and resistance to cracking during assembly or accidental drops. This durability ensures long-term reliability for components like switches and bobbins.

Reliable Performance in Heat

With a High Heat Deflection Temperature (HDT), components made from VALOX 357 maintain their shape and integrity in elevated temperature environments, ensuring consistent performance and preventing deformation.

VALOX™ FR PBT resin natual color

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