PBT Rod

PBT Rod provides high stiffness, excellent dimensional stability, and resistance to many solvents and fuels, making it suitable for precision-machined components. Its solid form allows for fabrication into load-bearing and insulating parts used in electronics, automotive systems, and industrial machinery. Specific uses include machined insulating spacers, wear-resistant bushings, and structural supports in electronic assemblies. Industries value PBT rods for their machinability, strength retention at elevated temperatures, and low moisture absorption. In research, they are applied to evaluate mechanical performance under cyclic loads, chemical compatibility in harsh environments, and wear resistance in moving assemblies. PBT rod’s balance of mechanical robustness and thermal stability ensures reliability in demanding technical applications.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Rod

Diameter		+20% / -10%

Material Properties for Polymers

Chemical Resistance

Element	Value
Acids - concentrated	Good-Poor
Acids - dilute	Good
Alcohols	Good
Alkalis	Fair
Aromatic hydrocarbons	Good
Greases and Oils	Good
Halogenated Hydrocarbons	Good-Poor
Halogens	Poor
Ketones	Good-Poor

Electrical Properties

Element	Value
Dielectric constant @1kHz	3.2
Dissipation factor @ 1kHz	0.002
Dielectric strength( kV mm⁻¹ )	20
Volume resistivity( Ohmcm )	10¹⁵

Physical Properties

Element	Value
Flammability	HB
Radiation resistance	Good
Resistance to Ultra-violet	Fair?
Limiting oxygen index( % )	25
Water absorption - over 24 hours( % )	0.1
Density( gcm⁻³ )	1.31

Mechanical Properties

Element	Value
Hardness - Rockwell	M70
Elongation at break( % )	250
Tensile modulus( GPa )	2
Izod impact strength( J m⁻¹ )	60
Tensile strength( MPa )	50

Thermal Properties

Element	Value
Heat-deflection temperature - 0.45MPa( C )	150
Heat-deflection temperature - 1.8MPa( C )	60
Upper working temperature( C )	120
Specific heat( J K⁻¹ kg⁻¹ )	1200-2300