AFLAS ® is the tradename for a unique fluoroelastomer based upon an alternating
copolymer of tetrafluoroethylene and propylene ("TFE/P"). AFLAS, when properly
formulated, can be used to fabricate o-rings, gaskets, and seals possessing several unique properties:
1) excellent heat resistance with 230°C continuous service temp capability,
2) chemical resistance including resistance to strong acids and
caustics / bases,
3) high electrical resistivity, and
4) excellent oil resistance.
Seals Eastern was one of the earliest companies to develop applications using AFLAS
® polymers in the oilfield, fluid control, heavy duty
diesel, steam, and other industrial uses. Seals Eastern
and its founder have been acknowledged countless times for advancements in the application technology of
AFLAS materials. Such recognition has come from several elastomer industry leaders, including
Dyneon LLC as shown here.
For chemical compatibility and other information on AFLAS visit
Need an AS-568A AFLAS ® O-ring overnight?
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Seals Easterns 7182™ series of formulated AFLAS seals
have set industry standards for the highest level of AFLAS performance in oilfield,
heavy-duty diesel, chemical, and
||General high temperature chemical resistant
||High temperature, high pressure service. ED resistant.
||High temperature, high pressure service. ED
||Ultra-low compression set for use in aqueous and
non-aqueous fluids, esp. OAT coolants.
AFLAS is categorized under the ASTM D1418 designation of FEPM. AFLAS
copolymer of tetrafluoroethylene(TFE) and propylene(P). On account of this molecular structure,
AFLAS has outstanding base resistance
(e.g. caustics, alkalines, amines, nucleophiles) unlike other fluorocarbon polymers that contain
Do not be fooled by cheap AFLAS o-rings and seals since they often lack proper postcuring techniques,
contain reground material, blends of cheaper fluorocarbon polymers and will deliver
inferior performance. Seals Eastern guarantees its 7182™ series AFLAS formulations
are 100% virgin AFLAS polymer and post-cured using state-of-the-art cure
technology. Visit our
standard compounds for a list of other high quality seal formulations that Seals Eastern offers.
MOLDING SUCCESS FOR 50 YEARS.
FastDash ™ is a trademark of Seals Eastern, Inc.;
OringOnline ® is a registered trademark of Seals Eastern, Inc.;
7182 ™ is a trademark of Seals Eastern, Inc.;
AFLAS ® is a registered trademark of Asahi Glass Co., Ltd.;
Viton ® is a registered trademark of Dupont Performance Elastomers, LLC.