KINGFA PBT-RG30

  • V-0 flame retardant PBT
  • 30% glass fiber reinforced for high strength
  • Excellent electrical insulation properties
  • High thermal resistance for elevated temperature applications
  • Low water absorption for dimensional stability
  • Description

Product Overview

KINGFA PBT-RG30 is a flame-retardant Polybutylene Terephthalate (PBT) resin reinforced with glass fiber to provide high mechanical strength, excellent electrical properties, and good thermal stability.
This grade is specifically designed for high-performance applications in electrical, automotive, and industrial sectors, requiring both flame retardancy and durability. It meets UL94 V-0 flame retardancy standards, making it suitable for connectors, electrical components, automotive electrical parts, and industrial housings.


Key Properties

  • V-0 Flame Retardancy: Meets UL94 V-0 standards for electrical safety and flame retardancy

  • Glass Fiber Reinforced: Provides high mechanical strength, stiffness, and dimensional stability

  • Excellent Electrical Properties: High dielectric strength and low dielectric constant for electrical components

  • Good Thermal Resistance: Withstands elevated temperatures, making it suitable for high-temperature applications

  • Low Water Absorption: Ensures dimensional stability and reliable performance in humid environments


Typical Applications

  • Electrical Connectors: For reliable, durable electrical connections

  • Automotive Electrical Components: Connectors, switches, and relays for automotive applications

  • Appliance Enclosures: Housing and structural components for household appliances

  • Industrial Housings: Flame-retardant enclosures for machinery and equipment

  • Switches and Relays: Suitable for use in high-performance electrical applications


Technical Data (Typical Values)

Physical Properties

PropertyValueTest Standard
Density1.63 g/cm³ASTM D792
Molding Shrinkage (Flow)0.3 %ASTM D995
Molding Shrinkage (Cross Flow)0.9 %ASTM D995
Water Absorption (23°C, 24 hr)0.07 %ASTM D570

Mechanical Properties (23°C)

PropertyValueTest Standard
Tensile Strength120 MPaASTM D638
Tensile Elongation at Break2.5 %ASTM D638
Flexural Strength185 MPaASTM D790
Flexural Modulus8800 MPaASTM D790
Notched Izod Impact85 J/mASTM D256
Rockwell Hardness120ASTM D785

Thermal Properties

PropertyValueTest Standard
HDT (0.45 MPa, Unannealed)220 °CASTM D648
HDT (1.8 MPa, Unannealed)210 °CASTM D648

Flame & Safety Properties

PropertyValueTest Standard
UL94 Flame Rating (0.8 mm)V-0UL 94
UL94 Flame Rating (1.5–1.65 mm)V-0UL 94
RTI Electrical (0.8 mm)75 °CUL 746B
RTI Impact (0.8 mm)75 °CUL 746B
RTI Strength (0.8 mm)75 °CUL 746B

Why Choose KINGFA PBT-RG30

  • V-0 Flame Retardancy: Complies with UL94 V-0 for safety in electrical and industrial applications

  • High Strength & Stiffness: Reinforced with glass fiber for enhanced mechanical properties

  • Excellent Electrical Properties: High dielectric strength and low dielectric constant, suitable for electrical components

  • Good Thermal Resistance: HDT of 220°C, ideal for high-temperature environments

  • Low Water Absorption: Ensures dimensional stability and reliable performance in humid conditions

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