APPLICATIONS
Oil & Gas Seals
Chemical Resistant Seals
High Pressure Seals
Coolant Seals
Steam Seals
MATERIALS
Standard Seal Compounds
7182 Aflas Seals
Viton Seals
HNBR SEALS
Perflas FFKM Seals
TOOLS
Fast Dash
O-ring Application
Design Guide
Elastomer Service Selection Guide
Technical Papers
Online
OringOnline
AFLAS O-rings
overnight
   
Seals Eastern, Inc.
HNBR (HSN) Seals, gaskets, and o-rings
for mechanically demanding applications.
 
 


134 PEARL STREET
RED BANK, NJ 07701-0520 USA
TEL: 732 747 9200  FAX: 732 747 3647

Rubber o-rings, orings, rubber seals, packer elements, gaskets, and rubber bonded to metal for sealing applications para Espanol Para portugues para Espanol

HOME

ABOUT US

SERVICES

PRODUCTS

NEWS

CONTACT US

 

Hydrogenated Nitrile Butadiene Rubber (HNBR), also known as Highly Saturated Nitrile (HSN), is special class of nitrile rubber (NBR) that has been hydrogenated to increase saturation of the butadiene segment of the carbon polymer backbone. Subsequent improvements to the material properties, over that of a nitrile rubber (NBR), include greater thermal stability, broader chemical resistance, and greater tensile strength. 

HNBR is classified by ASTM as a DH-type polymer. This classification indicates 150C service temperature as well as less than 30% swell in IRM 903 oil. HNBR can be formulated to meet application temperatures ranging between -50C and 165C.

HNBR o-rings, HSN orings, HSN seals, HNBR packer elements Seals Eastern is proud to have chosen Zeon Chemical Zetpol brand of HNBR polymer as the backbone of our HNBR (HSN) o-rings, seals, and packer elements.

Seals Easterns series of formulated HNBR compounds:
Ref# Duro Description
7345 70 General service o-ring and packer element rubber.
7346 75 -50C Tg extreme low temperature service rubber.
7336 80 General service o-ring and packer element rubber. 
7344 90 High modulus, extrusion resistant, o-ring and packer element rubber.  

SEALS EASTERN
MOLDING SUCCESS FOR 50 YEARS.

ISO 9001:2008 CERTIFIED - BVQi (NA), Inc.

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.; Zetpol is a registered trademark of Zeon Chemical.