PBT Plastic Sheet & Rod | Piedmont Plastics

Common Properties

Common Brand Names HYDEX®, Sustadur®
Typical Thickness Size 0.25 - 2.5 in
Typical Lengths 48, 72, 96 in
Typical Widths 24, 36, 48 in
Friendly Names Polybutylene Terephthalate
Common Profiles Sheet, Rod
Typical Rod Diameter 0.25 – 6 in

Physical Properties

Density 0.9 - 1.3g/cm³
Water Absorption 0.1 - 0.6%
Moisture Absorption at Equilibrium 0.1 - 0.4%
Linear Mold Shrinkage 0.002 - 0.025mm/mm
Melt Flow 2 - 30g/10 min

Electrical Properties

Dielectric Strength 18kV/mm
Dielectric Constant 3
Dissipation Factor 0.02
Volume Resistivity 1.0E+15ohm·cm
Surface Resistivity 1.0E+14ohm
Arc Resistance 120seconds
Comparative Tracking Index (CTI) 250V
Thermal Coefficient of Dielectric Constant -0.0021/°C
Electrostatic Discharge (ESD) Sensitivity Low
Breakdown Voltage 20kV

Mechanical Properties

Hardness, Rockwell R 77
Tensile Strength, Ultimate 55MPa
Tensile Strength, Yield 50MPa
Elongation at Break 3%
Elongation at Yield 2.5%
Modulus of Elasticity 2500MPa
Flexural Yield Strength 75MPa
Flexural Modulus 2400MPa
Compressive Yield Strength 70MPa
Bearing Yield Strength 80MPa
Shear Strength 35MPa
Izod Impact, Notched 0.6J/cm
Izod Impact, Unnotched 4.5J/cm
Gardner Impact 20J
Falling Dart Impact 25J
Instrumented Impact Total Energy 50J

Thermal Properties

CTE, linear 8µm/m°C
CTE, linear, Transverse to Flow 11µm/m°C
Deflection Temperature at 0.46 MPa (66 psi) 210°C
Deflection Temperature at 1.8 MPa (264 psi) 180°C
Vicat Softening Point 225°C
Flammability HBUL94
Max Continuous Operating Temperature 150°F
Minimum Operating Temperature -40°F
Thermal Conductivity 0.3W/m·K

Regulations

UL-94 Flame Class
FDA
ASTM/Mil-Spec
USDA
FAR 25.853 Flammability
RoHS Compliant
REACH Compliant

Get a Quote for PBT Plastic at Piedmont Plastics

Polybutylene terephthalate (PBT) is a high-performance engineering thermoplastic known for its toughness, stiffness, and excellent dimensional stability. Offered in sheet and rod form, PBT plastic combines wear resistance, electrical insulation properties, and low moisture absorption, making it a versatile choice across many industries. From automotive components to electrical housings, PBT delivers reliable performance in demanding environments. Contact Piedmont Plastics today to request a quote or learn how PBT plastic can benefit your next project.

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Key Features of PBT Plastic

PBT offers a balance of mechanical, thermal, and electrical properties that make it ideal for precision applications.

Strong and stiff with excellent dimensional stability
High wear resistance and low-friction surface
Good electrical insulation properties
Low moisture absorption for consistent performance
Resistant to fuels, oils, and many chemicals
Heat-resistant with good thermal stability
Easily machinable into custom parts

Benefits and Advantages

Customers choose PBT sheet and rod because it combines strength and machinability with dependable electrical and thermal performance. Its resistance to chemicals and moisture ensures reliable use in challenging environments. Contact Piedmont Plastics today to see how PBT can enhance your project.

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pbt black hydex sheet rod piedmont plastics

Common Applications

PBT is widely used in industries that require durable, high-precision components with electrical and chemical resistance.

Electrical Components: Insulating housings, connectors, and switches
Automotive Parts: Under-hood components, gears, and fasteners
Industrial Equipment: Wear parts and precision machine components
Consumer Goods: Appliance parts and structural components
Fabricated Parts: Custom machined shapes for high-demand environments

Frequently Asked Questions

Below are some commonly asked questions about PBT plastic and its performance in various environments.

PBT offers some weatherability but is best suited for indoor or protected environments. UV-stabilized grades are recommended for outdoor use. If you're unsure of what your applicaiton requires, ask your Piedmont Plastics sales rep.

PBT has low moisture absorption, which helps maintain dimensional stability and electrical performance. Always consult the manufacturer’s specifications for detailed information on moisture absorption for your specific grade.

Both are strong and machinable, but PBT provides better electrical insulation and chemical resistance, while acetal offers lower friction.

Why Buy from Piedmont Plastics?

At Piedmont Plastics, we provide high-quality engineering plastics like PBT sheet and rod, backed by expert service and nationwide availability.

Nationwide network of branches: Convenient local access and fast delivery
Custom cutting and fabrication services: Precision CNC cutting tailored to your specs
Deep industry expertise: Guidance from experts across multiple industries
Wide product selection that supports a one-stop-shop experience: A complete range of plastics for every application