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Celanex PBT | Crastin PBT

Celanex PBT | Crastin PBT

Polybutylene Terephthalate

Polybutylene Terephthalate (PBT) is an engineering thermoplastic polyester used in automotive, medical, consumer, electrical and electronics industries. This semi-crystalline polyester has a very high dimensional stability and is quite hard and rigid in nature. Celanex PBT and Crastin PBT compounds are available in multiple conventional and specialty grades.

Overview

Product overview

The wide range of PBT products with different performance profiles available in the marketplace is a tribute to the versatility of this material.

What is Polybutylene Terephthalate (PBT)?Polybutylene Terephthalate (PBT) belongs to the family of semi-aromatic Thermoplastic Polyester, which is a very strong Engineering Thermoplastic Polymer (ETP) with high heat resistance and good creep resistance. Its semi-crystalline structure and chemical composition provides resistance to a wide range of chemicals, including oils and greases. PBT has good electrical properties, is naturally resistant to weathering and can be made flame retardant and hydrolysis resistant. Polybutylene Terephthalate is available in multiple families of numerous grades with different key properties. These engineering polyester products are used in automotive interiors and exteriors, small and large appliances, power tools, electrical and electronic devices, food handling, filtration, cosmetics, personal care, and medical and pharmaceutical applications. If you need more details about Polybutylene Terephthalate, reach out to us at Celanese .

Why Crastin PBT | Celanex PBT?With more than 100 formulations available, designers and engineers rely on Crastin PBT and Celanex PBT for stiffness and toughness, superior electrical insulation and exceptional surface finishes. It’s available in multiple performance categories including unfilled, glass fiber reinforced, hydrolysis resistant, low warpage, flame retardant, food contact, medical technology to meet different application requirements. Crastin PBT and Celanex PBT grades are also offered that meet the most stringent Electrical Insulation Standards (EIS) and enables Celanese to offer the industry’s largest portfolio of materials pre-approved by Underwriters Laboratories (UL) and recognized to International Electrotechnical Commission (IEC) standards. Made globally in three regions, Crastin PBT and Celanex PBT also have the sustainability options available wherever you are.

Properties

Properties and processing

Technical Attributes

  • Hard, rigid and strong
  • Continuous use temperature to 140 ℃
  • Very high heat distortion temperature (HDT),especially for glass fiber reinforced grades
  • High dimensional stability
  • Good creep resistance
  • Good chemical & stain resistance
  • Good weathering resistance
  • Good paintability & printability
  • Excellent surface properties & appearance
  • Rapid crystallization & fast cycle time

Processing

  • Injection molding

Advantages

High Strength and Toughness at High Temperature
High Strength and Toughness at High Temperature

Continuous use temperature up to 140°C.

Chemical Resistance
Chemical Resistance

Resistant to a wide range of chemicals, solvents, oils and greases.

High Dimensional Stability
High Dimensional Stability

Low moisture and water absorption. Stable dimension under different climate conditions.

Sustainable Offering
Sustainable Offering

Includes many recycled and bio content options, with more in development.

Electrical & Flammability Performance
Electrical & Flammability Performance

Good electrical properties and available in EIS and UL V0 grades.

Molding Friendly
Molding Friendly

Rapid crystallization and fast cycle time.

Excellent Aesthetic Appearance
Excellent Aesthetic Appearance

Multiple color matching capabilities.

Sustainability

Key applications

Appliances Automotive ECU ADAS and Sensor High Voltage Connectors Electrical Components Injection Pen

Appliances
Automotive ECU
ADAS and Sensor
High Voltage Connectors
Electrical Components
Injection Pen

Grades

Polybutylene Terephthalate grade list
Polybutylene Terephthalate grade list

Explore and compare all Polybutylene Terephthalate grades.

Resources

Brochures and reference materials

The materials in this section are organized for reference based on publicly available Celanese Corporation materials. Copyright and trademark rights belong to the respective rights holders, and the latest versions and official usage terms should be confirmed on the official Celanese page.

PBT
PBT
High-Strength-and-Toughness-at-High-Temperature
Chemical-Resistance