Viton o-rings and Viton seals for chemically aggressive and high temperature applications by Seals Eastern since 1960.

 

 

 Seals Eastern, Inc.
Viton ® o-rings, gaskets, and seals for
high temperature and chemically aggressive applications. Precision molded for mission critical applications since 1960. 
134 Pearl Street
Red Bank, NJ 07701 USA
Tel: 732.747.9200  Fax: 732.747.3647 		 Seals Eastern manufactures Viton seals and Viton o-rings using ISO certified processes

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Genuine Viton includes Viton AHV, Viton ETP, Viton TBR, Viton B, and other Viton polymers formulated by Seals Eastern. Seals Eastern was one of the earliest companies to develop applications using Viton ® polymers by DuPont Elastomers. Seals Eastern precision molds all grades of Genuine Viton ® polymers, Viton B, Viton AHV, Viton Extreme ( ETP ), and Viton Extreme ( TBR ) into o-rings, gaskets, and other mission critical seals. Generally speaking, products molded using Genuine Viton elastomers provide exceptional resistance to heat, oils, and chemicals.
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Seals Eastern's formulated Viton ® elastomers can be applied in o-rings as well as many seal designs and applications.
D1418 Class Duro Compound Description
FKM    
(Type 1)
Viton A		 605722AExcellent mechanical properties. Good extrusion resistance. Chemical and heat resistant.
  757040Chemical and heat resistant.
  857042UExcellent mechanical properties. Good extrusion resistance. Chemical and heat resistant.
  907042Chemical and heat resistant.
     
(Type 2)
Viton B		 605722Maximum retention of elastic properties. Excellent resistance to fluids and heat aging.
  755723Maximum retention of elastic properties. Excellent resistance to fluids and heat aging.
  855724Maximum retention of elastic properties. Excellent resistance to fluids and heat aging.
  955725Maximum retention of elastic properties. Excellent resistance to fluids and heat aging.
      
(Type 2)
Viton GF		 705787 Exceptional resistance to oils, organic fluids, steam, inorganic acids and other aqueous media. 69% Fluorine terpolymer. 
  805788 Exceptional resistance to oils, organic fluids, steam, inorganic acids and other aqueous media. 69% Fluorine terpolymer. 
     
(Type 3)
GFLT		 755794Low temperature Service. Excellent resistance to fluids and heat aging.
FEPM    
Viton ETP 807265DViton Extreme - ETP. PMVE/TFE/E composition. Excellent base resistance. Resistant to aromatic HC's.
  857265Viton Extreme - ETP. PMVE/TFE/E composition. Excellent base resistance. Resistant to aromatic HC's.
     
Most Viton ® elastomers are categorized under the ASTM D1418 designation of FKM. This class of elastomer is further categorized by types. 
  • Type-1 FKM:  is a copolymer of hexafluoropropylene (HFP) and vinylidene fluoride (VDF or VF2). A Type-1 Viton is generally 66% fluorine by content.
  • Type-2 FKM:  is a terpolymer of tetrafluoroethylene (TFE), vinylidene fluoride (VDF), and hexafluoropropylene (HFP). A Type-2 Viton is generally 68% fluorine by content.
On account of these molecular compositions, Viton ® based elastomer formulations deliver a broad range of chemical resistance, continuous service temperatures of 350F, and low temperature capabilities down to 10F.

Viton-ETP ®, also referred to as Extreme, is an FEPM class material and additionally offers excellent base resistance since there is no vinylidene fluoride in the composition. 

Do not be fooled by cheap Viton ® o-rings that often contain reground material, cheap fluorocarbon copolymers. Cheap imports will deliver inferior performance. Seals Eastern guarantees its Genuine Viton ® seals are made using 100% virgin Viton ® polymers and are post-cured in accordance with DuPont recommendation. 

  • 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 ™

To learn more about Viton ®

Visit the DuPont chemical resistance guide.

Viton ® is a registered trademark of DuPont  Elastomers.
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