Seals Eastern, Inc. Aflas ® Seals, Gaskets, and O-rings for mission critical applications mfg'd by Seals Eastern since 1980.  134 Pearl Street Red Bank, NJ 07701 USA Tel: 732.747.9200  Fax: 732.747.3647 Contact Us About Us Oring Online Products Home

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 continuous service temperature capability of 230°C,  2) chemical resistance including resistance to strong acids and bases,  3) high electrical resistivity, and  4) excellent oil resistance.

Seals Eastern was one of the earliest companies to develop applications using Aflas ® polymers. 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 www.AFLAS.com

Use our free interactive design tables for AS-568A standard industrial reciprocating and static o-ring applications. Select the type of application you are designing for to view the corresponding design guidelines. ROD SEAL -  I.D. designed PISTON SEAL - O.D. designed FLANGE SEAL - O.D. & I.D. designed END CAP SEAL - I.D. designed PLUG SEAL - O.D. designed Need an AS-568A AFLAS ® O-ring  overnight? Visit OringOnline™ 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 steam applications. Ref# Duro Description 7182D 80 General high temperature chemical resistant service. 7182B 90 High temperature, high pressure service. ED resistant.  7182A 95 High temperature, high pressure service. ED resistant.  7182X 80 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 is a 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 vinylidene fluoride. 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.

To get the dimensions of an AS-568A o-ring, or to determine the "Dash" number of an o-ring, or to use our free interactive o-ring design tool: Visit   Fast Dash ™

Seals Eastern, Inc., is an engineering and manufacturing firm, founded in 1960, with the resources to design, manufacture, and deliver high quality elastomer seals, gaskets, and o-rings for the most demanding seal applications throughout the world. Click here to learn more about Seals Eastern

AFLAS ® is a registered trademark of Asahi Glass Co.
OringOnline® is a registered trademark of Seals Eastern, Inc.
FastDash™ is a trademark of Seals Eastern, Inc.
7182™ is a trademark of Seals Eastern, Inc.