Poly(1,4-butylene terephthalate)
Poly(1,4-butylene terephthalate) (CAS: 30965-26-5) is a hydrophobic polyester known for its excellent mechanical properties and thermal stability. This thermoplastic polymer finds significant utility in various manufacturing sectors. Its key applications include the production of durable automotive components, reliable electrical connectors, and robust domestic appliance parts, owing to its good mouldability and resistance to wear and chemicals.

Automotive Components
Poly(1,4-butylene terephthalate) is widely moulded into various automotive parts, benefiting from its mechanical strength and resistance to automotive fluids.
Electrical Connectors
Its electrical insulation properties and dimensional stability make it suitable for manufacturing reliable electrical components and connectors.
Domestic Appliances
This polyester is used in the assembly of domestic appliances, where its durability and resistance to wear contribute to product longevity.
| Density | 1.31 g/mL at 25 °C(lit.) |
|---|---|
| Application | Molded into auto parts, electrical components and domestic appliance assemblies. |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Transition Temp | Tm 227 °CTg 66 °C |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Poly(1,4-butylene terephthalate) used for?
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Poly(1,4-butylene terephthalate) is used for moulding into auto parts, electrical components, and domestic appliance assemblies.
What is the CAS number and formula for Poly(1,4-butylene terephthalate)?
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The CAS number for Poly(1,4-butylene terephthalate) is 30965-26-5. The chemical formula is not provided in the data.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this material as a technical or research grade. We do not represent it as USP, BP, or EP grade.
What are the safety and handling considerations for Poly(1,4-butylene terephthalate)?
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Appropriate personal protective equipment, including eyeshields and gloves, should be worn. A type N95 (US) or type P1 (EN143) respirator filter may be necessary. The WGK (German water hazard class) is 3.
How is Poly(1,4-butylene terephthalate) packed, shipped, and exported?
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Tech Serve Solutions expertly packs, ships, and exports fine chemicals globally, adhering to all relevant regulations for safe transport.
How can I request a quote or sample of Poly(1,4-butylene terephthalate)?
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To request a quote or sample, please contact our sales team with your specific requirements.
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