Category overview

Polyester

Based on 5189 products - Last update on the Jun 26, 2025

Thermoplastic polyester as a semi-crystalline material ranging from translucent to opaque with a natural white to off-white color. Key features include high mechanical strength and stiffness, excellent dimensional stability, good chemical resistance to hydrocarbons and oils, high temperature resistance, good electrical insulation properties, and excellent barrier properties against gases and moisture. Used in beverage packaging bottles, containers, automotive under-hood parts, exterior trim, electrical/electronic connectors, housings, industrial fibers and textiles. 

Alternatives include polyamides, polycarbonates, and polyolefins. Current trends include bio-based versions, barrier grades, crystallization-modified grades. Major sub-types include Polyethylene Terephthalate (PET), Polybutylene Terephthalate (PBT), Polytrimethylene Terephthalate (PTT), Polyethylene Naphthalate (PEN), ad various glass-fiber modified, flame retardant, and glycol-modified copolyesters.

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Linear Mold Shrinkage (1262)
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LNP™ KONDUIT™ COMPOUND WTF2C

by SABIC

LNP™ KONDUIT™ COMPOUND WTF2C by SABIC is a PFAS-free polybutylene terephthalate (PBT) filled with glass fiber and mineral. It offers thermal conductivity with electrical insulation, stable dielectric properties over a wide temperature range, good processability and high temperature resistance.<br> <ul style="padding-left: 40px;"><li>LNP™ KONDUIT™ COMPOUND WTF2C is suitable for processing by injection molding.</li> <li>It is used in automotive interiors, under-the-hood, electrical components and infrastructure, and electric vehicles.</li></ul>
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Crastin® SLW9230

by Celanese

Crastin® SLW9230 by Celanese is a polybutylene terephthalate grade. It provides improved laser transparency (LT), low warpage (LW), hydrolysis resistance (HR), boosting welding efficiency, reducing deformation and enhances durability in moist environments. Crastin® SLW9230 is recommended for actuator and sensor housing applications.
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Pocan® BFN4232ZHR S1

by Envalior

Pocan® BFN4232ZHR S1 by Envalior is a halogen-free, flame-retardant PBT that combines the strengths of PBT and polyamide 6/66. It offers dimensional stability, low electro-corrosion and strong electrical insulation at high temperatures, along with hydrolysis resistance, creep resistance and at break comparable to polyamide.<br> <ul style="padding-left: 40px;"><li> It exhibits high elongation at break and good tracking resistance. </li><li> It is ideal for use in connectors for ultrafast high-voltage charging, secondary 48-volt board supply and AI data center applications. </li><li>It is free from halogenated ingredients and also contains no polyfluorinated alkyl substances (PFAS).</li><li> It also has applications in housings and electrical components in the rapidly growing market for smart grid devices. </li><li> Pocan® BFN4232ZHR S1 achieves a CTI A rating of 600 (IEC 60112), meeting the highest insulation class (IEC 60664-1) even in orange and black-unique for 25% glass fiber-reinforced PBT.</li></ul>
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Eastman

282 Products
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Polyester