About PTFE Coated O-rings
PTFE Coated O-rings are specialized sealing solutions designed to provide low friction and high chemical resistance.
It consists of an elastomeric core / centre, typically silicone or FKM, which is then coated or encapsulated with a thin layer of PTFE. These coated and encapsulated O-rings are customized to provide optimum functionality such as friction resistance and improved lubrication.
In demanding applications where durability, chemical and high temperature resistance is required, these PTFE Coated O-rings are the solution.
Advantages of PTFE-Coated O-Rings
Colour Identification
PTFE coated O-rings can be produced in various colours, making it easy to identify these O-rings, which is especially useful for maintenance and quality control.
High Temperature Resistance
PTFE coated O-rings can withstand extreme temperatures, making them ideal for high-temperature environments
Non-stick Properties
The non-stick nature of PTFE ensures that the O-rings are easy to remove and clean, even in environments with difficult contaminants.
Chemical Resistance
PTFE coated O-rings are resistant to many harsh chemicals, although they won’t protect the O-ring itself from chemical exposure due to the porous nature of the coating.
Low Friction
PTFE coated O-rings are resistant to many harsh chemicals, although they won’t protect the O-ring itself from chemical exposure due to the porous nature of the coating.
Thin Coat
The PTFE coating is thin and doesn’t significantly affect the O-ring’s tolerance, preserving its sealing performance.
Limitations of PTFE-Coated O-Rings
Poor Dynamic Wear Resistance: PTFE coatings tend to wear off quickly, making them more suited for static applications rather than dynamic ones.
Flaking: The tendency for PTFE coatings to flake off with wear can lead to contamination in sensitive systems, especially in clean environments.
Porous Coating:While PTFE provides some chemical resistance, it doesn’t enhance the O-ring’s inherent chemical resistance. The base O-ring material must still be chosen carefully for compatibility with the chemicals and temperatures it will encounter.
Hardness
50 to 90 Shore A
Temperature Range
-60° C to +260° C
Colours
Wide range of colours such as white, green, red, yellow, blue etc.
Comparison
Applications of PTFE Coated O-rings
Why Ismat
EXPERTISE. INNOVATION. TRUST
At ISMAT, we pride ourselves on being a trusted global partner for high-performance sealing solutions. With decades of industry experience, we leverage our deep technical knowledge and Innovative spirit to deliver cutting-edge products that meet and exceed our clients expectations.
COMMITMENT TO QUALITY
Quality is at the core of everything we do. Our stringent quality control processes ensure that each product is meticulously tested and meets the highest standards. This unwavering commitment to quality has earned us the trust and loyalty of clients worldwide.
GLOBAL REACH, LOCAL SUPPORT
With a robust global network and a presence in key markets, ISMAT is well-positioned to serve clients around the world. Our local support teams are always ready to provide personalized assistance, ensuring seamless communication and prompt service.
CUSTOMER-CENTRIC APPROACH
Our customers are at the heart of our business. We listen closely to their needs and work. Collaboratively to develop solutions that drive their success. Our customer-centric approach ensures that we build long-lasting relationships based on trust and mutual growth.
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