What is Fluorezi® | FFKM
Fluorezi® is our FFKM rubber. FFKM or perfluoroelastomers are elastomers that contain higher amounts of fluorine than any other fluorinated elastomer like standard FKM. This unique feature makes FFKM have a near-universal chemical compatibility. O-rings and seals made of FFKM rubber have the highest chemical and heat resistance of all elastomers up to 325 ºC.
When to use Fluorezi® | FFKM
The material price of FFKM is very high in comparison to any other elastomer. Fluorezi® is at it’s best when:
> The costs of seal failure are high
> Downtime costs are high
> Overhaul time needs to be reduced
> Sealing failure results in: environmental emissions or spills, the safety risk of people, or the contamination of products.
Why use Fluorezi® | The benefits
> Best price guarantee
> High & consistent quality
> Any size & quantity
> Production time: 4 weeks
Fluorezi® | FFKM material types
40 series | General purpose
Equivalent to Kalrez® 6375, Isolast® J9440, Simriz® 495, Simriz® 485, Parofluor® V8787-75
41 series | High temperature
Equivalent to Kalrez® 4079 & Kalrez® 1050LF, Isolast® J8325, Parafluor® V8545-75, Perlast® G75TX
42 series | Ultra high temperature
Equivalent to Kalrez® 7075
45 series | Low temperature
Equivalent to Chemraz® 505
48 series | Explosive decompression resistant
Equivalent to Kalrez® 0090
Generic FFKM material information
Performs well in
- Concentrated alkalis and basis
- Ketones, esters and ethers
- Halogens and strong oxidizing media
- Hydraulic and fuel oils and fuels
- Organic solvents
- Hot water and steam
- CIP and SIP cleaning media Aliphatic and aromatic amines
- Ethylene oxide and propylene oxide
Does not perform well in
- Fluorinated refrigerating agents
- Perfluorolubricants
Typical FFKM Applications
- Chemical processing
- Semiconductor and nanotechnology
- Lacquer, print and coatings
- The aerospace and aviation industries
- Marine fuel systems
FFKM Product range
FFKM O-RINGS
O-rings provide engineers with a high-performance sealing element in a wide range of static and dynamic applications. NewDealSeals offers O-rings according to standards for example:
> AS 568A American standard
> ISO 3601 International standard
NewDealSeals also offers moulded O-rings in non-standard sizes according to customer specifications. Read more about O-ring sizes and dimensioning in our O-ring Handbook:
FFKM CUSTOM-MOULDED PARTS
Specific parts are designed, developed and produced in conjunction with customers to ensure that all requirements
are satisfied. NewDealSeals offers custom-moulded parts in virtually any shape.
The physical characteristics of perfluoroelastomers require careful design input from engineers at NewDealSeals. NewDealSeals perfluoroelastomer custom-moulded parts are a typical area of proven success in even the most hostile of environments.
Fluorezi® types overview| FFKM materials
| Fluorezi® compounds |
Key features | Temperature range | Price level |
| 40 Series | General purpose Good chemical resistance |
Mimimum -10 °C(Continious)/-15 °C(short) Maximum +240 °C(Continious) /+250 °C(short) |
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| 41 Series | High thermal resistance | Mimimum -10 °C(Continious)/-15 °C(short) Maximum +320 °C(Continious)/+330 °C(short) |
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| 42 Series | Very high thermal resistance | Mimimum -10 °C(Continious)/-15 °C(short) Maximum +330 °C(Continious)/+340 °C(short) |
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| 43 Series | Best chemical resistance | Mimimum -10 °C(Continious)/-15 °C(short) Maximum +240 °C(Continious)/+250 °C(short) |
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| 45 Series | Great low temperature resistance | Mimimum -40 °C(Continious)/-45 °C(short) Maximum +240 °C(Continious)/+250 °C(short) |
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| 48 Series | Explosive decompression resistant | Mimimum -10 °C(Continious)/-15 °C(short) Maximum +240 °C(Continious)/+250 °C(short) |
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FFKM material | interchange table
| Fluorezi® compounds |
Kalrez ® | Isolast® | Simriz® | Chemraz® | Parafluor® | Perlast® |
| 40 Series | 6375 | J9440 | 495 485 |
– | V8787-75 | G70A/G75M |
| 41 Series | 4079 1050LF |
J8325 | – | – | V8545-75 | G75TX |
| 42 Series | 7075 | – | – | – | – | – |
| 43 Series | – | J9503 | – | – | – | |
| 45 Series | – | – | – | 505- | – | – |
| 48 Series | 0090 | – | – | – | – | – |
Certifications & compliances
Newdealseals offers a wide range of products & materials that are certified and/or in compliance with industry specific standards. Examples of certifications and compliances:
Food
FDA CFR 21.177.2600 (A-D) Dry foods
FDA CFR 21.177.2600 (A-F) Fatty foods
EC 1935/2004 compliance
EC 2023/2006 compliance
BFR Class XV
Medical
USP class VI
ISO 10993
NSF 61 section 6
Oil & Gas
Norsok M710
Drinking water
WRAS
3-A
Gas appliances
DIN EN 549
Alternatives for FFKM, Fluorezi® O-Rings & Seals
Do you want improved low temperature properties?
Are you looking for a more economical alternative?
VMQ, Silicone O-Rings
Temperature range (-54 to 232 °C). Very suitable for mineral oils. Good flexibility, low compression set, ozone and UV-resistant.
FKM, Viton® O-Rings
Temperature range (-25 to 204 °C). Very good resistance to chemicals, oils, ozone and UV. Suitable for static and light dynamic applications.
CONTACT FORM
We believe in the quality of our products and service. Fill out the form on the right-hand side and we will contact you shortly. Or you can use our product request form here.
NewDealSeals B.V.
+31 (0) 226 362 233
Boezemschop 8, Breekland, 1724 BJ Oudkarspel, The Netherlands