Crastin

Brand Information

Crastin® PBT by Celanese is a high-performance polybutylene terephthalate (PBT) engineered to meet the demanding requirements of various industries. As a semi-aromatic thermoplastic polyester, Crastin® PBT is known for its outstanding mechanical properties, including exceptional strength, durability, and resistance to heat and creep. Its semi-crystalline structure provides excellent chemical resistance to oils, greases, and other aggressive substances, making it an ideal choice for applications requiring long-term reliability. Additionally, Crastin® PBT offers superior electrical insulation, natural weather resistance, and can be customized for flame retardancy and hydrolysis resistance.

Crastin® PBT is available in a broad range of grades, each formulated to optimize specific performance characteristics. These variations make Crastin® PBT suitable for an extensive array of applications, including automotive interiors and exteriors, electrical and electronic devices, household appliances, power tools, filtration systems, personal care and cosmetic packaging, and even medical and pharmaceutical components. With its diverse material properties, Crastin® PBT meets the needs of manufacturers seeking reliable, high-quality thermoplastic solutions.

Key properties of Crastin® PBT grades include:

• High stiffness and toughness
• Superior electrical insulation properties
• Excellent surface finish for enhanced aesthetics
• Unfilled and glass fiber-reinforced options
• Hydrolysis-resistant formulations for demanding environments
• Low warpage for dimensional stability
• Flame-retardant grades for enhanced safety
• Food-contact-approved variants for packaging applications
• Medical-grade PBT compliant with industry regulations
   

Crastin® PBT also meets stringent regulatory requirements and holds certifications from leading industry bodies, including Electrical Insulation Standards (EIS), Underwriters Laboratories (UL), and compliance with International Electrotechnical Commission (IEC) standards. These certifications ensure that Crastin PBT delivers consistent, high-quality performance across diverse applications.

The main advantages of Crastin® PBT include:

• High mechanical strength and impact resistance
• Outstanding heat resistance for high-temperature applications
• Excellent chemical resistance for harsh environments
• Superior dimensional stability for precision molding
• Sustainable and eco-friendly material options
• Excellent electrical insulation and flame-retardant performance
• Fast cycle times for efficient manufacturing
• Aesthetic appeal with high-quality surface finishes
   

By choosing Crastin® PBT from Celanese, manufacturers gain access to a versatile and reliable engineering thermoplastic that enhances product performance and longevity. Whether for automotive, electronics, healthcare, or consumer goods, Crastin PBT offers a proven solution that meets industry standards while providing excellent mechanical, thermal, and electrical properties. Explore the full potential of Crastin® PBT and discover how this advanced polymer can elevate your next project.