Polybutylene terephthalate (PBT) is an engineering plastic known for outstanding toughness, fatigue resistance, good heat resistance, weatherability, electrical properties, and low water absorption. Glass fiber reinforcement and flame retardant modification further enhance heat resistance, flame retardancy, dimensional stability, and modulus, making modified PBT suitable for automotive, electronic, and electrical applications. The modified PBT materials supplied by resinpc.com include glass fiber reinforced and flame retardant filled grades, alongside Covestro Makroblend PC/PBT alloys such as S7916 (impact modified, injection molding grade, excellent chemical resistance and high toughness at low temperatures).
In electrical and electronics, the trend toward smarter appliances demands materials meeting high glow-wire and high CTI standards. Modified PBT offers comprehensive performance through reinforcement, flame retardancy, low warpage, high GWFI/GWIT, high CTI, and high flow, used in capacitor cases, high-end induction cooker coils, rice cooker socket connectors, micro switches, timers, and coil bobbins. In automotive, PBT is used in ignition distributors, fuse boxes, connectors, headlight housings, window supports, door handles, wiper motor housings, and airbag components. The global PBT market is projected to grow from USD 2.6 billion in 2025 to USD 2.77 billion in 2026 at a CAGR of 6.4%, with EV components and electronics miniaturization as core growth drivers.
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