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GENERAL PROPERTIES OF ELASTOMERS

The chart below shows the general characteristics of some of the common rubber compounds. Elastomers are mixed with various chemicals to provide a wide range of physical properties for specific service needs.



ASTM DesignationCommon NameCompositionGeneral Properties
CRNeopreneChloroprene
  • Good abrasion resistance
  • Good weathering resistance
  • Good oil resistance
  • Flame retarding
NBRNitrile
(Buna-N)
Acrylonitrile-butadiene
  • Excellent oil resistance
  • Moderate oil resistance
IIRButylIsobutene-isoprene
  • Excellent weathering resistance
  • Good resistance to fire resistant fluids
  • Good heat resistance
  • Low permeability to air
  • Poor resistance to petroleum fluids
CIIRChlorinated ButylChloro-isobutene isoprene
  • Similar to Butyl
SBRSBRStyrene-butadiene
  • Good abrasion resistance
  • Poor resistance to petroleum fluids
EPDMEPDMEthylene-propylene diene terpolymer
  • Excellent ozone resistance
  • Good chemical resistance
  • Good temperature resistance
  • Poor petroleum characteristics
XLPECross-Linked PolyethylenePolyethylene and cross linking agents
  • Excellent chemical resistance
PANylonPolyamide
  • Good abrasion resistance
  • Good chemical resistance
  • Low coefficient of friction
CSMHypalon®Chloro-Sulfonated Polyethylene
  • Excellent ozone resistance
  • Good abrasion resistance
  • Good heat resistance
  • Fair petroleum qualities
NRNatural RubberIsoprene rubber (Natural)
  • Excellent abrasion resistance
  • Acid resistant
  • Not oil resistant
AFMUPTFETetrafluro ethylene
  • Excellent high temperature resistance
  • Excellent chemical resistance
V-NBRVinyl NitrilePVC/NBR
  • Good ozone resistance
  • Good resistance to animal fats and oils
  • Good petroleum resistance


Hypalon is a registered trademark of DuPont Dow Elastomers

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Tampa Rubber & Gasket Co., Inc.

215 North 20th Street
Tampa, FL, USA 33605
Ph-813-247-3647 Fax-813-247-3180
Toll Free-800-940-4673 E-Mail - The Post Office
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