Difference Between FKM and FFKM

FFKM, or perfluoroelastomer, contains higher amounts of fluorine than standard FKM, and features higher temperature ratings, up to approximately 325°C. FFKM also has improved chemical resistance, with nearly universal chemical compatibility. ... The first commercially available FFKM seal was produced in the late 1960s.

1. What does Ffkm mean?
2. What is the difference between FKM and Viton?
3. Is Ffkm the same as kalrez?
4. What is the difference between FKM and EPDM?
5. Why is kalrez so expensive?
6. Is Viton FKM?
7. What is another name for Viton?
8. What Viton 75?
9. Is FPM and FKM the same?
10. What is kalrez made of?
11. What is FKM seal material?
12. What is Aflas rubber?

What does Ffkm mean?

Perfluoroelastomers (FFKM) are the elastomeric form of poly(tetrafluoro ethylene) or PTFE. These elastomers have a fully fluorinated backbone. They are copolymers of tetrafluoroethylene and a perfluorinated ether such as perfluoromethylvinylether (PMVE).

What is the difference between FKM and Viton?

FKM is the American standard ASTM short form name for Fluro-Elastomer. ... VITON™ is a registered trademark of Du Pont performance elastomers, the original developers of the rubber. However, the Viton is also used as a general name for the material, no matter who the manufacturer is.

Is Ffkm the same as kalrez?

Kalrez^® perfluoroelastomer (FFKM) parts withstand attack from more than 1,800 chemicals, solvents and plasmas. ... Kalrez^® parts are available in a number of different compounds that are formulated to optimize properties and give the best possible performance in various chemicals and temperatures.

What is the difference between FKM and EPDM?

FKM: FKM is known to swell in fluorinated solvents and cannot be used with molten or gaseous alkali metals. FKM is a premium product, due to its chemical makeup. ... EPDM: Although EPDM offers good resistance to dilute acids, ketones and alkalis, it does not fare so well fuels, oils and non-polar solvents.

Why is kalrez so expensive?

The name Kalrez® is a trademark of Dupont. The material is actually an improved version of Viton with 20% more fluorine in the chains, making it an extremely expensive per fluorocarbon elastomer.

Is Viton FKM?

Viton is a brand of FKM, a synthetic rubber and fluoropolymer elastomer commonly used in seals, chemical-resistant gloves, and other molded or extruded goods.

What is another name for Viton?

When you're thinking about what is Viton™ exactly, you can classify it as one of the many fluoroelastomers out there. It's a trade name for a fluoroelastomers produced by DuPont, so yes, it is the same thing. Other brand names for fluoroelastomers include FKM and FPM.

What Viton 75?

VITON® 75 O-Rings BS425 to BS475 Cross Section 6.99mm

Fluorocarbon elastomers are highly fluorinated carbon-based polymers used in applications to resist harsh chemical and ozone attack.

Is FPM and FKM the same?

So what's the difference between FPM and FKM? FPM is the international designation to ISO – whereas FKM is the ASTM abbreviation. Both of these designations stand for the same base material : Fluoro Rubber.

What is kalrez made of?

DuPont™ Kalrez® 3035 perfluoroelastomer parts are a carbon black filled product well suited for use in production of valve stem packings. The mechanical properties and chemical resistance of Kalrez® 3065 make it the best choice for many oil and gas well environments.

What is FKM seal material?

FKM is the ASTM designation for a class of fluorinated, carbon-based synthetic rubber, commonly known as fluoroelastomer. FKM has impressive heat resistance, allowing FKM seals to withstand temperatures greater than 200°C.

What is Aflas rubber?

AFLAS® is unique fluoroelastomer that has superior amine resistance and electrical insulation compared to conventional fluoroelastomers. AFLAS® is highly suitable for critical applications where exceptional reliability is required.