Category overview

Polyester

Based on 5200 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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Decomposition Temperature (368)
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Linear Mold Shrinkage (1262)
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Linear Mold Shrinkage, Flow (1619)
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Surface Resistivity (1235)
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Volume Resistivity (1782)
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Ultradur® B4450G5

by BASF

Ultradur® B4450G5 by BASF is a 25% glass fiber-reinforced polybutylene terephthalate grade. It features enhanced flame-retardancy for components used in household appliances, connectors, and power switches. It is free from halogens and antimony and is suitable for processing by injection molding. Ultradur® B4450G5 meets the European railway standard EN 45545 and is certified accordingly.
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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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BASF

709 Products
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Polyester