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Comparison of Elastomer Properties.

 

 

E=Excellent; VG=Very Good; G=Good; F=Fair; P=Poor

 

PHYSICAL PROPERTIES COMPARISON

 

Natural Rubber

SBR

EPDM

Neoprene

Nitrile

Urethane

Silcone

Fluorocarbon

Chemical Name

Polyisoprene

Styrene Butadiene

Ethylene Propylene

Chloroprene

Acrylonitrile Butadiene

Polyester/Polyether Urethane

Polysiloxane

Fluorinated Hydrocarbon

SAE 1200 - ASTM D2000

AA

AA,BA

BA,CA,DA

BC,BE

BF,BG,BK

BG

FC,FE,GE

HK

ASTM Designation (D-1418)

NR

SBR

EPDM, EPR

CR

NBR

AU,EU

Psi,PVsi, Si, Vsi

FKM

Specific Gravity

0.093

0.94

0.86

1.23

1.00

1.05-1.25

0.95-1.20

1.4-1.95

Durometer, Shore A

30-100

40-100

30-90

40-95

30-90

55-100

25-90

55-90

Tensile Strength

E

G-F

VG

VG

VG

E

G-F

VG

Elongation

VG-G

G

G

G

G

VG-G

E-VG

G-F

Compression Set

G

G

G

G-F

G

E-G

E-G

E-G

Heat Resistance

F

G-F

E-VG

G-F

G

G-F

E

E

Resilience or Rebound

E

G-F

G

VG

G-F

E-F

G

F

Impact

E

E

G

G

F

E-G

G-P

E

Abrasion

E

E-G

E-G

E-G

E-G

E

F-P

G-F

Tear

E

F

G-F

G-F

G-F

E

F-P

F

Cut Growth

E

G

G

G

G

E-G

F-P

F-P

Flame Resistance

P

P

P

G

P

F-P

G-F

E-VG

Gas Impermeability

F

F

G-F

G-F

G

P-F

G-F

E

Weather resistance

F-P

F

E

VG-G

G-F

E-G

E

E

Temperature range F

-50 to 225

-50 to 225

-20 to 350

-50 to 225

-40 to 275

-50 to 250

-150 to 550

-40 to 450

 

CHEMICAL RESISTANCE PROPERTIES

 

Natural Rubber

SBR

EPDM

Neoprene

Nitrile

Urethane

Silcone

Fluorocarbon

Chemical Name

Polyisoprene

Styrene Butadiene

Ethylene Propylene

Chloroprene

Acrylonitrile Butadiene

Polyester/Polyether Urethane

Polysiloxane

Fluorinated Hydrocarbon

Acid

G-F

G-F

G

G

G

F-P

F

E-G

Alcohols

G

G

G-F

VG-G

G-F

G-F

G

E-F

Alphatic Hydrocarbon Slovents

P

P

P

G

E

G

F-P

E

Alkali

F

F

VG

E

VG

P

P

G-F

Animal and Vegitable Oils

F

F

G

G

VG

G

G

E

Aromatic Hydrocarbon Solvents

P

P

P

F-P

G-F

F-P

F-P

E

Petroleum Products

P

P

P

G-F

E-G

E-G

F-P

E

Oxygenated Solvents

G

G

VG

F-P

P

P

F

P

Water

E

E-G

E

G

E-G

G

E-G

G

 

 

Use this as a guideline only. These properties are very general.