High Quality PTFE Sheet Rod
7 month ago
Product details
White PTFE Rod for Engineering
White PTFE rods are solid cylindrical plastic profiles made of polytetrafluoroethylene (PTFE) resin through molding or extrusion. PTFE is a fully fluorinated polymer material with unique chemical inertness, extremely high temperature resistance and low friction coefficient, and is known as the "King of Plastics". White PTFE rods are usually pure white or milky white (without adding masterbatch), with a smooth surface and non-toxicity. They are suitable for fields with extremely high requirements for chemical stability, temperature resistance and low friction.
Product Features:
Color: Standard is pure white or milky white (light color customization can be achieved by adding masterbatch, but it may affect the purity).
Structure: Solid rods, usually ranging from 4mm to 260mm in diameter.
Surface state: Smooth and flat, surface roughness Ra≤0.8μm.
Data Sheet
| Properties | Standard | Unit | Test Data |
| Specific gravity | ISO 1183 | g/cm3 | 2.2 |
| Water absorption | ISO 62 | % | 0.0 |
| Flammability | UL94 | V-0 | |
| Mechancial Properties | |||
| Yield stress | ISO 527 | Mpa | 23 |
| Elongation at break | ISO 527 | % | 300 |
| Tensile modulus of elasticity | ISO 527 | Mpa | 590 |
| Notched izod impact strength | ISO 180 | kJ/m2 | 11 |
| Notched impact strength | ISO 179 | kJ/m2 | 11.2 |
| Flexural strength | ISO 178 | Mpa | 15.5 |
| Shore hardness | ISO 868 | scale D | 50-55 |
Product Advantages of PTFE Round Bar
Chemical Inertness
It can withstand almost all strong acids (such as concentrated sulfuric acid, nitric acid), strong alkalis (such as sodium hydroxide) and organic solvents (such as acetone, benzene). It does not decompose even when boiled in aqua regia. It is suitable for chemical, pharmaceutical and other highly corrosive environments.
Temperature Adaptation Range
The long-term use temperature is -200℃ to +260℃, and the short-term temperature resistance can reach 300℃. It does not become brittle at low temperatures and does not soften at high temperatures. It is suitable for extreme environments (such as refrigeration equipment and high-temperature furnace parts).
Friction Coefficient
The dry friction coefficient is only 0.04-0.10 (usually 0.1-1.5 for metal friction pairs). It has excellent self-lubricating properties and can achieve low-friction movement without adding lubricating oil. It is suitable for high-precision seals and bearing parts.
Electrical Insulation
The volume resistivity is >10¹⁸ Ω·cm, the dielectric strength is 18-25 kV/mm, and the dielectric constant is stable (2.0-2.2). It is suitable for high-frequency and high-voltage insulation parts (such as cable sheaths and connectors).
High purity and non-toxicity
White PTFE rods have no added fillers or pigments (standard type), comply with FDA, USP Class VI food and medical grade certification, and can be used in food processing, medical devices and other scenes that come into contact with the human body or food.
Aging and UV resistance
It will not deteriorate in long-term use under ultraviolet rays, ozone and harsh climates, and has a service life of more than 20 years. It is suitable for outdoor or high-radiation environments (such as photovoltaic equipment seals).
Easy processing and plasticity
It can be formed by mechanical processing such as turning, drilling, milling, etc., and can also be cold-pressed and sintered into complex shapes (such as special-shaped seals), which is suitable for customized needs.
Specific application areas and components
Chemical and pharmaceutical fields
Corrosion-resistant seals: such as valve seals and pipe flange gaskets, resistant to strong acid, strong alkali and organic solvent corrosion (such as reactor and tank seals).
Corrosion-resistant pipe lining: used for the inner wall lining of pipes that transport corrosive media (such as hydrofluoric acid and concentrated sulfuric acid) to extend the life of the pipe.
Electronic and electrical fields
High-frequency insulation components: such as cable sheaths, connector insulators, and circuit board brackets, which are resistant to high voltage and have stable insulation performance (suitable for 5G communication base stations and high-voltage equipment).
Semiconductor manufacturing components: used for wafer carriers and etching equipment seals, resistant to plasma corrosion and free of metal ion pollution.
Machinery and equipment fields
Self-lubricating bearings and sliders: used for bearings and guides in food machinery and textile machinery, which can achieve low-friction movement without lubricating oil (such as mixer bearings and conveyor belt sliders).
Valve and pump components: such as diaphragm valve cores and centrifugal pump impellers, which are wear-resistant and corrosion-resistant (suitable for chemical pumps and metering pumps).
f4 sheet and rod
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