PTFE Uses, Advantages and Limitations
Polytetrafluoroethylene, PTFE, or Teflon® as it is often referred to, is a tough, ductile material with excellent thermal properties and outstanding resistance to chemicals and the passage of electric current. PTFE has an exceptionally low coefficient of friction, believed to be lower than any other solid.
While plastics are high molecular weight organic polymers composed of various elements such as carbon, hydrogen, oxygen, nitrogen, sulphur and chlorine, Polytetrafluoroethylene (PTFE) is just made up of fluorine and carbon atoms. This dramatically changes the property of the material and PTFE, like other fluoroplastics, has distinctive properties.
Properties of PTFE:
- Low surface energy and non-stick characteristics
- Effective over a wide range of temperatures
- Very low coefficient of friction
- Low dielectric constant
- High electrical strength and thermal insulation
- Resistance to weather and UV light
- High ductility
- High inertness
- High corrosion and chemical resistance
- Non-Flammable
- Low compression modulus allowing enhanced sealing at low pressure
- FDA approved and food safe
- Low water absorption
PTFE, however also has some limitations in its applications.
Limitations of PTFE:
- Non-melt processable material
- Low tensile yield strength and modulus (when compared to PEEK, PPS and LCP)
- High wear behaviour in unfilled state
- Not weldable
- Sensitivity to creep and abrasion
- Low radiation resistance
One of the common PTFE uses is non-stick coating in kitchen cookware (pans, baking trays, etc.). PTFE is also used as a cost-effective solution for chemical processing, oil & gas, industrial, semiconductor, and construction sectors.
Typical applications:
- Surface coatings
- Chemical processing equipment
- Valve seats
- External aircraft components
- Vessel linings
- Printed circuit boards
- Industrial bakeware
- Food processing equipment
- Seals
- Structural bearings
PTFE has a very high-melt viscosity and a high-melting temperature which makes traditional processing methods difficult.
Typical processing methods:
- Cold compression moulding and sintering
- RAM extrusion
- Paste extrusion
- Auto moulding
- Isostatic moulding
- Moulding and skiving
To find out how we can support your projects contact info@fluorocarbon.co.uk
Similar Articles
-
Improving Uptime and Reducing Maintenance in the Oil & Gas Industry with Advanced Materials
In oil and gas operations, where equipment runs continuously in some of the harshest environments on earth, reliability is everything.
Read More -
High-Performance Sealing Solutions for the Oil & Gas Industry
In the oil and gas sector, sealing components operate under some of the toughest conditions on earth.
Read More -
Oil & Gas Applications: Skidway Systems, Slide Bearings and Subsea Bearings
The oil and gas industry operates at the intersection of extreme loads, harsh environments and zero-tolerance for failure.
Read More -
Weathering the Elements: Polymers for Wind Turbines and Solar Components
Renewable energy infrastructure must endure some of the harshest conditions on Earth. Offshore wind farms face relentless salt spray, extreme temperature shifts, and high mechanical loads.
Read More -
Enabling a Cleaner Future: How Fluoropolymers Support the Hydrogen & Renewable Energy Transition
The global energy landscape is evolving rapidly. Hydrogen, solar, and wind energy are no longer niche technologies, they are central to achieving a cleaner, more sustainable future.
Read More -
Hydrogen Compatibility: Testing and Material Validation for the Energy Transition
The global shift toward hydrogen as a clean energy source brings exciting opportunities and equally demanding engineering challenges.
Read More -
Sealing the Future: High-Performance Polymers in Hydrogen Systems
As the world accelerates toward cleaner energy, hydrogen has emerged as a key player in the global transition.
Read More -
Advanced Coating Capabilities for Large Aerospace Components
In the aerospace industry, reliability is non-negotiable.
Read More -
High-Performance Plastics and Machined Metal Components in Commercial Airlines
The aerospace industry demands materials and components that can withstand extreme conditions while delivering reliability, efficiency, and safety.
Read More -
How High-Performance Polymers Are Driving Space Innovation
The aerospace industry is evolving at a rapid pace. From reusable spacecraft to ever-smaller, high-performance satellites, the demands placed on materials have never been greater.
Read More -
Lightweight, Durable, Essential: Polymers in Aerospace Applications
When it comes to aerospace engineering, every gram counts. Whether in the skies or beyond Earth’s atmosphere, weight reduction, durability, and reliability are mission-critical.
Read More -
Lithography in Semiconductor Manufacturing: The Blueprint of Modern Electronics
The semiconductor industry relies on some of the most advanced technologies in the world to create the tiny, complex circuits that power everything from smartphones to satellites.
Read More -
Fluoropolymer Solutions for Wet Process and Chemical Delivery in Semiconductor Tools
In semiconductor manufacturing, wet process systems play a critical role in wafer cleaning, etching, and surface preparation.
Read More -
High-Performance Polymers vs. Metal Alloys: A Battle in the Skies
In aerospace engineering, where every gram matters and reliability is non-negotiable, material selection can mean the difference between flight and failure.
Read More -
The Hidden Cost of Using the Wrong Material in Critical Environments
In high-stakes industries such as oil and gas, renewable energy, semiconductor, and aerospace, the choice of material isn’t just a technical decision, it’s a business-critical one.
Read More -
Understanding Wet Processes in Semiconductor Manufacturing: Applications & Materials
As the demand for smaller, faster, and more powerful electronic devices continues to grow, the semiconductor industry constantly seeks more precise, efficient, and contamination-free manufacturing techniques.
Read More -
Material Challenges in the Hydrogen Economy – And How to Overcome Them
As the world accelerates toward decarbonisation, hydrogen is emerging as a critical enabler of the clean energy transition.
Read More -
PTFE Gaskets and Washers
PTFE (also referred to as Teflon), is known for its exceptional resistance to chemicals and high temperatures, making it an ideal choice for sealing applications in harsh environments.
Read More -
How is PTFE used in the solar Industry?
PTFE (also referred to as Teflon), is extremely resistant to the elements.
Read More -
-
A Guide to Machining PTFE
When machining PTFE it’s essential to design your application with PTFE’s inherent properties in mind, it can be difficult to achieve tight machining tolerances. At Fluorocarbon, we utilise our in house compression moulding capabilities to create stock shapes for efficient machining of custom PTFE parts.
Read More -
PTFE vs PFA
Fluoropolymers share several unique properties which make them suitable for use in the automotive, aerospace, oil and gas and medical industries. PTFE, PFA and FEP are the most well-known and common fluoroplastics. So what, exactly, are their differences?
Read More -
PTFE vs PEEK
High-Performance Plastic are distinguished primarily by their temperature stability, but also their mechanical properties.
Read More -
PTFE vs PCTFE
The difference between PTFE and PCTFE is mainly in the chemical structure. The addition of one Chlorine atom in place of one Fluorine atom leads to a massive change in its properties and application.
Read More -
PTFE Material Infographic
PTFE is a tough, non-stick, low friction material. Because of its flexibility PTFE can creep and deform under heavy loads but this can be alleviated by adding filler.
Read More -
What are the Benefits of using Fillers in PTFE?
What are the benefits of using fillers in PTFE?PTFE is a tough, non-stick, low friction material.
Read More -
How are Bearings used in Civil Engineering and Construction?
Fluoroglide® Slide Bearings are superior to conventional expansion plates, rollers and rocker arms, because they accommodate expansion and contraction, as well as other reciprocating motions of thermal, seismic or differential…
Read More -
What is PTFE Coating?
What is PTFE coating? PTFE (Polytetrafluoroethylene), the original fluoropolymer, is a tough yet flexible, material with great electrically insulating properties and excellent resistance to chemicals; it has one of the lowest coefficients of friction of any solid.…
Read More -
What Makes Plastic High Performance?
High-Performance Plastic, High-Temperature Plastic, High-Performance Thermoplastic, High-Performance Polymer…However you refer to this range of materials, what makes them different to other types of plastic?
Read More -
What is Polytetrafluoroethylene? (PTFE)
Generally, PTFE is a tough, flexible, non-resilient material of average tensile strength but with great thermal properties and excellent resistance to chemicals and passage of electric current.
Read More