PBT Glassfiber Flame Retardant

PBT Glass Fiber Flame Retardant is a reinforced thermoplastic polyester based on polybutylene terephthalate. Glass fibers improve strength, rigidity, and dimensional stability, while flame-retardant additives (halogen-free or halogenated depending on grade) provide excellent fire performance.

This combination delivers high mechanical stability, outstanding electrical properties, and reliable flame resistance, even under demanding thermal conditions.

Key Features

• High Strength & Rigidity
  Glass fiber reinforcement dramatically increases tensile and flexural strength.

• Flame Retardant Performance
  Excellent UL94 flame ratings (typically V-0 or V-1), stable combustion behavior.

• Low Warpage & Good Dimensional Stability
  Suitable for precision molded parts and tight tolerances.

• Excellent Electrical Properties
  High insulation performance, suitable for electrical and electronic applications.

• Good Chemical Resistance
  Resistant to oils, fuels, detergents, and many industrial chemicals.

• Heat Resistance
  Continuous working temperature typically 120–140°C.

Typical Applications

• Electrical connectors and terminal blocks

• Coil bobbins, switches, relays

• Automotive electrical components

• Heat-resistant housings and enclosures

• LED lighting components

• Appliance parts requiring flame safety

• Precision mechanical parts

Available Grades

• 15% Glass Fiber Reinforced Flame Retardant (PBT-GF15 FR)

• 30% Glass Fiber Reinforced Flame Retardant (PBT-GF30 FR)

• 40% Glass Fiber Reinforced Flame Retardant (optional)

• Halogen-free FR grades available upon request

Processing Conditions

• Suitable for injection molding

• Good melt flow characteristics

• Drying recommended prior to processing to prevent hydrolysis