Is FKM same as Viton?
These rubber compounds give exceptional heat resistance with compatibility across many fluids or chemical exposures. The most commonly known name for these compounds is “Viton,”™ which has become the generic name for all FKM polymers and rubber compounds.
What is FKM sealing?
FKM seals, also known as fluorocarbon seals are industrial seals made of fluorocarbon elastomer material. Commonly, these seals are used in aviation and aerospace, food and pharmaceutical, semiconductor manufacturing applications, etc.
What are Viton gaskets used for?
Gaskets made of Viton® are recommended for harsh, high-temperature environments. They are often used with lubricating and fuel oils, hydraulic oil, gasoline, kerosene, vegetable oils, alcohols, and diluted acids.
Is Viton better than FKM?
Fluoro-Elastomer is usually referred to as FKM FPM or as VITON™ after the popular brand which produces it. You may see this rubber listed in different places with these different names, but they are all one and the same.
Is FKM same as FPM?
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.
Is FKM better than EPDM?
EPDM (EP, EPR, Ethylene-Propylene Rubber) Both materials are well suited for use in the -30 to 150°C range. FKM has an advantage in lower temperatures and EPDM has an advantage in higher temperatures.
How long do Viton seals last?
O-Ring Shelf Life Recommendation per AS5316
| Elastomer Family | ASTM | Shelf Life |
|---|---|---|
| Fluorocarbon (Viton) | FKM | Unlimited |
| Fluorosilicone | FVMQ | Unlimited |
| Hydrogenated Nitrile, HNBR or HSN | HNBR | 15 Years |
| Nitrile (Buna-N or NBR) | NBR | 15 Years |
How hard is Viton?
Even in the harshest environments, subjected to temperature extremes and harsh chemicals, Viton® fluoroelastomers perform extremely well. With that in mind, this rugged rubber is ideally suited for applications requiring hard-wearing O-rings, gaskets and seals.
What is FKM o-ring?
FPM is the ISO designation, FKM is the ASTM designation. Viton®, Dai-El and Technoflon are brands for FPM polymers. All of the designations stand for one single base material, which is fluoro rubber. This rubber is used in applications that need O-rings that are resistant to high temperatures and chemical attacks.
Is FKM the same as PTFE?
FKM offers greater temperature resistance but falls short of PTFE’s properties in terms of chemical resistance. While PTFE is slightly less thermally resistant but offers much in the way of non-adhesive properties.
What are FPM seals?
The FPM/FKM Viton® sealing rings are often used aircraft, automobile and other mechanical devices requiring maximum resistance to elevated temperatures and to many fluids, or other media.
What is the difference between FKM and NBR?
Standard Viton® / FKM vs Standard Nitrile Standard Viton®/FKM compounds can provide continuous sealing at temperatures up to approximately +205°C. Standard NBR on the other hand is only effective for continuous sealing at temperatures up to +110°C (with short term sealing at 130°C.)
What is the difference between EPDM and FKM?
Is FKM the same as FPM?
What is the difference between NBR and FKM seals?
Standard Viton®/FKM compounds can provide continuous sealing at temperatures up to approximately +205°C. Standard NBR on the other hand is only effective for continuous sealing at temperatures up to +110°C (with short term sealing at 130°C.)
What is FKM used for?
Today, FKM materials are commonly used to manufacture o-rings, seals, and gaskets for a variety of high-performance applications in the automotive, aerospace, energy, semiconductor, and industrial industries.
What is FKM sealant made of?
FKM Seals – Fluoro Rubber FKM is a copolymer made of highly fluorinated hydrocarbons and developed during the 1950s. FKM seals display very good resistance to media, ozone and aging. The material is also stable in fuels as well as petroleum-based oils and greases, along with aliphatic and aromatic hydrocarbons.
What is FKM lubricant?
FKM is also highly resistant to chemicals and can withstand ozone, typical automotive fuels, and hydrocarbon lubricating oils. However, FKM doesn’t give as great results against strong acids, alkalis, and ketones. Viton® gaskets were first used in the aerospace industry owing to their fuel resistance and low burning characteristics.
What is FKM elastomer?
FKM is a high tech. elastomer designed for extreme heat, oil and chemical resistance. It is not a Viton elastomer. The name is a registered trademark of The Chemours Company previous Du Pont de Nemours and was introduced in 1957.
What is FKM gasket?
FKM is graded as ‘HK’ as per the ASTM D2000 standard for classifying elastomers. Here, H indicates that the performance of an FKM Gasket deteriorates very little after prolonged exposure to temperatures of 250°C (480°F). FKM also works well in low-temperature conditions going as low as -40°C (-40°F).