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Grade: Copolymer
Formula: PFA
Form: Rod
Material: Tetrafluoroethylene-perfluoro(alkoxy vinyl ether)
Commodity: Polymers
Teflon PFA Copolymer Rod offers superior chemical resistance, thermal stability, and electrical insulation in a solid cylindrical format ideal for precision machining and structural applications in corrosive or high-purity settings. Its non-stick surface and low moisture absorption ensure long-term dimensional stability in demanding environments. Industries employ PFA rods in chemical pump components, semiconductor wafer handling tools, and food processing machinery. Specific applications include fabricating precision valve seats, machining inert stirring rods for reactive chemical solutions, and producing electrical insulators for high-frequency equipment in corrosive atmospheres. In research, PFA rods are used to develop prototype components for aggressive chemical handling, test mechanical performance in thermal cycling, and create custom fixtures for cleanroom processes. This format’s machinability and resilience make it invaluable for high-precision industrial and scientific uses.
Tolerances
Rod
| Diameter | +20% / -10% |
|---|
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Excellent |
| Acids - dilute | Excellent |
| Alcohols | Excellent |
| Alkalis | Excellent |
| Aromatic hydrocarbons | Excellent |
| Greases and Oils | Excellent |
| Halogens | Excellent |
| Ketones | Excellent |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1kHz | 2.05-2.06 |
| Dielectric constant @1MHz | 2.05-2.06 |
| Dissipation factor @ 1kHz | 0.0001-0.0002 |
| Dissipation factor @ 1MHz | 0.0008 |
Physical Properties
| Element | Value |
|---|---|
| Flammability | V0 |
| Refractive index | 1.35 |
| Limiting oxygen index( % ) | 95% |
| Water absorption( % ) | 0.03 |
| Density( gcm⁻³ ) | 2.15 |
Mechanical Properties
| Element | Value |
|---|---|
| Elongation at break( % ) | 300 |
| Tensile strength( MPa ) | 25 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 63-80 |
| Heat-deflection temperature - 1.8MPa( C ) | 48-50 |
| Upper working temperature( C ) | 260 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.19 |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 76-78 |
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