PFAS-Free* Solutions & Materials

With growing regulation over Per- and PolyFluoroAlkyl substances, a transition towards alternative materials has become critical to supply chain management throughout the industry. Omniseal Solutions partners with our customers and suppliers to find and develop advanced materials & components for critical applications, anticipating key changes in our markets.

Due to the excellent combination of physio-chemical properties, fluoropolymers, a sub-family of PFAS, have been used by Omniseal Solutions for decades on numerous challenging applications in various Industries. Furthermore, other materials have already been developed and used over many years across different markets. Recent changes in the regulatory environment accelerated our efforts towards the research and development of alternative materials for our customers’ applications.

Our teams of engineers are very well known as leaders in sealing technology through material expertise and a precision design creativity, coupled with a wide range of application testing and material simulation capabilities. We develop and continue to invest in diverse production capabilities that provide us with a versatile manufacturing infrastructure, supplying high-performance metal and polymer parts.

You can find more of those alternatives in the page below or contact us to know more and explore the alternatives with our engineers.

Try our new PFAS-Free* Assessment Tool to quickly determine if there are sealing options compatible for your applications.

* PFAS-Free here means we do not intentionally add PFAS material in the product, but does not exclude the possibility of traces, as these materials are common in the environment.

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Meldin® 2000 Bushing
Meldin® 2000 Bushing

Meldin® Polyimides

2000 PI Based

The legacy material range of Omniseal Solutions, the Meldin® 2000 series, offers excellent tensile strength and elongation, high compressive strength, and strong dimensional stability.


Used in
often used as a bearing material, offers low friction, high strength, and resistance to compressive creep
Temperature

-160°C to +315°C

Manufacturing Process
Hot compression molding
Mechanical Strength

40 MPa

Meldin® 6000 Polyimide Sheets
Meldin® 6000 Polyimide Sheets

Meldin® Polyimides

6000 PI Based

The Meldin® 6000 Polyimide (PI) Based series from Omniseal Solutions offers self-lubrication, long durability under high temperature and load, and high resistance to radiation and chemical environment. 


Used in
used when an economic solution is needed for high-temperature requirements
Temperature

-160°C to +290°C

Manufacturing Process
Hot compression molding
Mechanical Strength

35 MPa

Meldin® 7000
Meldin® 7000

Meldin® Polyimides

7000 PI Based

A thermosetting polyimide, the Meldin® 7000 material series exhibits extremely high dimensional stability at elevated temperatures. Testing has shown that Meldin® materials have less than 0.04% variation from their original dimensions after cycling from 73°F (22.77°C) to 500°F (260°C) over a two-day period.


Used in
able to withstand thermal shocks very well and has extremely high dimensional stability
Temperature

-200°C to +315°C

Manufacturing Process
Hot compression molding
Isostatic molding
Direct forming
Mechanical Strength

40 MPa

Meldin® 8000/9000
Meldin® 8000/9000

Meldin® Polyimides

8000/9000 PI Based

The Meldin® 8000/9000 Polyimide (PI) Based series is a specific range of material formulations, used in bearing cages, for example, due to its strength and its low coefficient of friction. It is a porous structure filled with lubricant. 


Used in
combine self-lubricating dry lubricants with a porous structure & originally developed for the aviation and space industries
Temperature

-240°C to +260°C

Manufacturing Process
Hot compression molding
Isostatic molding
Mechanical Strength

n.a.

Omniseal® Spring-Energized Seal Group
Omniseal® Spring-Energized Seal Group

Spring-Energized Seals

Polymer Seals with Metal Springs

Omniseal® spring-energized seals are composed of two precision parts: a PTFE or polymer jacket and a corrosion-resistant, metal energizer spring. With an unlimited shelf-life compared to conventional seals, the precision seals provide improved performance over soft elastomeric seals and hard metal gaskets that typically fail. Engineered spring designs include: ribbon or helical seal design; cantilever or V-spring seal design; U-shaped seal design; and advanced pitch spring or coil seal design.


Used in
static & dynamic sealing (face/radial), cryogenic & high temperatures
Temperature

-268°C to +316°C (-450°F to +600°F)

Pressure

from vacuum up to 50,000 psi (3448 bar)

Max Speed

Up to 1 m/s

Clamping Load

1 to 11 N/mm