VALOX™ FR PBT 4521

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SABIC® PC Resin

Valox FR PBT 4521 Flame Retardant Grade

VALOX™ FR resin 4521 is a 20% glass-filled, flame-retardant PBT. It offers high flow for easy molding, excellent chemical resistance, and top-tier safety ratings like UL94 V-0 at 0.75mm. It is suitable to thin-wall electrical components.

  • Character: 20% glass filled, high flow, flame retardant
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Key technical data

  • Flame Ratings: UL 94 V-0 @ 0.75 mm | 5VA @ 2.0 mm
  • Tensile Strength (Yield): 110 MPa
  • Flexural Modulus: 6500 – 7000 MPa
  • HDT @ 1.82 MPa: 205°C
  • Vicat Softening Temp (B/50): 210°C
  • Comparative Tracking Index (CTI): 275 V
  • Dielectric Strength (0.8mm): 37 kV/mm
  • Melt Temperature: 250 – 270°C
  • Drying: 2-4 hours at 110-120°C

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Application

  • Electrical Connectors & Sockets
  • Circuit Breakers & Switches
  • Automotive Sensors & Actuators
  • Coil Formers & Bobbins
  • Household Appliance Components

Features & Benefits

Superior Flame Retardant Safety

This grade achieves a UL94 V-0 rating at just 0.75mm, allowing for the design of thinner, lighter, and safer components without compromising on critical fire safety standards in electronics and electrical devices.

Excellent Flow for Complex Molds

The high-flow characteristic of VALOX 4521 ensures easy filling of intricate and thin-walled molds. This results in fewer defects, higher production yields, and the ability to design more complex and miniaturized parts.

Robust Mechanical & Chemical Strength

With 20% glass reinforcement, it provides strong stiffness, strength, and resistance to a wide range of chemicals. This ensures long-term reliability and durability for components exposed to harsh environments or mechanical stress.

VALOX™ FR PBT resin natual color

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