Everyone, in every sector, working on a range of applications, is always looking for that perfect seal.
A seal that is easy to install and assemble that isn’t put off by poor flange conditions maintains a strong seal, not letting any liquids or gases escape, and a seal is flexible and versatile that you can use it across numerous applications.
We understand.
That’s why we recommend PTFE gaskets at SSP.
Meeting all of the above criteria and more, a PTFE gasket offers excellent compressibility, providing you with a tighter seal and an even distribution of the bolt load. They’re suitable for chemical applications, and PTFE gasket application is easy to install and maintain.
This post looks at PTFE uses and the application of PTFE gaskets.
What is PTFE?
PTFE gaskets are widely used across several industries.
PTFE or polytetrafluoroethylene (also known as brand Teflon) is a versatile fluorocarbon polymer and an incredibly popular material due to its physical and chemical properties.
Non-metallic gaskets, PTFE can be engineered with other materials to enhance the performance of the gasket, allowing you to meet more specific application specifications.
It is a valuable material due to the benefits it brings to the applications it is used within.
Benefits such as:
Opting for the PTFE material ensures low friction and provides high corrosion resistance. In addition, PTFE also has a high melting temperature, high levels of resilience, and high surface wear.
Not only does this make them suitable for various applications, but it also means less maintenance is required, so replacements are less.
PTFE gaskets and materials also have a long product life, even after continuous use.
They don’t absorb UV light, and PTFE shows excellent resistance to sunlight.
PTFE gaskets can withstand extreme temperatures between -75 degrees Celsius and +260 degrees Celsius.
PTFE is one of the best non-stick materials available, making it great for the food and drink industry.
Why use PTFE?
- It is chemically resistant, making it suitable for most corrosive environments.
- It provides a robust seal so you can be confident that products are protected from contamination.
- PTFE gaskets are completely insoluble.
- Lubricants, hydraulic fluids, aircraft fuel, and other external factors do not affect PTFE.
- It is a material that is unaffected by weathering and ageing, and in addition, it won’t absorb water.
- PTFE is the material of choice in some sectors and for certain applications, as it can be used as an external electrical insulator.
Note:
Where additional properties and features are required, fillers can be used alongside PTFE.
These fillers can increase creep resistance, increase hardness levels, support chemical resistance, and meet more specific compliance requirements.
Types of material fillers that you can opt for with your PTFE material include:
- Glass fibre
- Porous PTFE
- Carbon fibre
- Graphite
- Bronze
- Polyamide
- Stainless steel
Material selection and choice will depend on several factors, and choosing the filler that meets your requirements perfectly is essential.
Whether this is to increase or boost compression resistance, increase wear resistance, reduce deformation under set loads, or increase thermal conductivity.
You will also find a range of specific and branded PTFE products, gaskets, and seals available on the market – contact us with your requirements, and we will work with you to provide the most appropriate solution.
PTFE Application
Industries that have a use for PTFE include:
Petrochemical industry – this sector uses PTFE to support various pieces of equipment as PTFE is resistant to corrosive substances and extreme temperature ranges. PTFE is also resistant to most chemicals at different pressures and temperatures, continuing to perform well, especially when the seal comes into contact with hydraulic fluids, for example.
Pharmaceutical industry – PTFE is an ideal material for medical equipment as it can withstand surface wear and tear, offers good chemical and temperature resistance, and these secure seals help prevent contamination, which is vital in this sector.
Electrical components – from transformers to motors to everyday electrical equipment, PTFE is the material of choice due to the stability it provides in high-temperature and chemical environments. Ensuring continuous high performance, PTFE is also corrosion-resistant and resistant to surface wear, which is a big bonus.
Food and drinks sector – PTFE conforms to all FDA standards and guidelines, so it is suitable within the food and catering sector. The structure of Teflon is very strong. Specifically, it won’t bond with other items due to its chain of carbon atoms linked to its two fluorine atoms.
It’s important to understand the applications of PTFE gaskets and the advantages and drawbacks this type of material can provide your application when looking for the perfect sealing solution.
To discuss your specific requirements, your application, or your next project that requires
high-performance and quality seals and gaskets, speak to a member of the SSP team today.
To help you to find the most suitable sealing gasket for your application, call us on 01535 274 776 or email your requirements to sales@specialistsealingproducts.co.uk.
