One of the Largest Inventories of AFLAS® O-Rings in the United States
Global O-Ring and Seal stocks AFLAS® o-rings in 70, 80, and 90 Durometer in standard and metric sizes. Global O-Ring and Seal maintains a FULL line (all 394 AS568 Sizes) of AFLAS® 80 Durometer Black o-rings.
AFLAS® O-Ring Material Description
AFLAS® is a copolymer of tetrafluoroethylene (TFE, FEPM) and propylene, also known as TFE/P. This elastomer was developed by Asahi Glass (Japan) and sold under the AFLAS® trade name.
AFLAS® O-Ring Chemical Resistance
AFLAS® o-rings are highly resistant to a wide range of chemicals, such as acid, base, and steam.
AFLAS® O-Ring Temperature Range
Standard Low Temp: -10°C (-14°F)
Standard High Temp: 220°C (428°F)
SPEC SHEET: AFLAS® 80 DurometerSHOP FOR AFLAS® O-RINGS
AFLAS® vs FKM and FFKM
AFLAS® vs. FKM (Viton®)
AFLAS® vs. FFKM (Kalrez®, Chemraz®, Simriz®, etc.)
|AFLAS® o-rings have much better base resistance and steam resistance than FKM.||AFLAS® o-rings have similar chemical resistance to FFKM and is a much more cost effective material.|
AFLAS® O-Ring Applications
Thanks to its unique chemical resistance properties, as well as the cost advantage over FFKM, AFLAS® finds ever-increasing applications in various industries.
|Downhole||Chemical Resistance, Heat Resistance, Steam Resistance||In certain geographic regions, O-rings used downhole are exposed to corrosive gas like H2S, high temperature steam, or basic mud. Rubber parts made of AFLAS® survive longer under these harsh conditions.|
|General Steam||Steam Resistance, Anti-Corrosive||FKM will harden if it comes into contact with steam which contains even a very small amount of anti-corrosive. AFLAS® has excellent steam resistance and has been found extremely reliable in this application.|
|Mechanical Seals||Amine, Alkali Chemical Resistance||O-rings in mechanical seals are required to be resistant to various chemicals in one environment. AFLAS® has superior chemical resistance compared to FKM.|
|Marine Engines||Anti-Corrosive||Coolant inside large diesel engines contains anti-corrosive additives, and some of these can damage FKM. Because of this, a higher cost FFKM is sometimes used. However, leakage problems can often occur due to the poor elasticity of FFKM. AFLAS® has similar chemical resistance to FFKM and better elasticity. AFLAS® not only has a cost advantage but also a longer service life in this kind of application.|
Preferred Environments for AFLAS® O-Rings
Performs Well In:
- Petroleum fluids
- Brake fluids
- Phosphate esters
- Engine oils
- Steam and hot water
- Pulp and paper liquids
Doesn't Perform Well In:
- Aromatic fuels
- Chlorinated hydrocarbons