Name

Natural

Urethane

Neoprene

Nitrile

Butyl

EPDM

Buna-S

Silicone

Hypalon

Viton®

ASTM Term

NR/IR

AU/EI

CR

NBR

CRIR

EPDM

SBR

SI

CSM

FKM

Robco Part #

140/460

Urethane

466/E-60

9863

930

EPP-60/EP-60

464

960/975

HY-60

VI-75/VIT-B

Min. Temp
(F) Cont.

-20

-10

-10

-10

-10

-20

0

-60

-30

-10

Max. Temp
(F) Cont.

185

185

220

220

220

275

195

460

220

400

Abrasion

E

O

G

G

F

G

G

P

G

G

Dielectric Strength

E

E

G

P

E

E

E

G

G

G

Flame Resistance

P

F

E

P

P

P

P

G

G

G

Heat Aging
(212 deg F)

F

G

G

G

G

E

G

O

E

O

Oxidation Resistance

G

E

E

G

E

E

F

E

E

O

Ozone Resistance

P

E

E

P

E

O

P

E

O

O

Radiation Resistance

E

E

G

G

F

O

E

E

G

E

Weather Resistance

F

E

G

F

E

E

F

E

E

E

Tear Resistance

G

E

G

F

G

G

F

P

F

G

Shelf Life, yrs (cool, dry, no sunlight)

5

8

8

8

8

8

5

20

8

20+

Concentrated Acids

G

P

G

G

G

E

G

P

E

E

Dilute Acids

G

F

G

G

E

E

F

F

E

E

Concentrated Alkalies

F

P

P

P

G

E

F

F

G

P

Dilute Alkalies

G

F

G

G

G

P

F

P

G

P

Aliphatic Hydrocarbons

P

G

F

E

P

P

P

P

G

E

Aromatic Hydrocarbons

P

P

P

G

P

P

P

P

F

E

Oils – Animal & Vegetable

F

G

G

E

G

G

F

G

G

E

Oil and Gasoline

P

G

G

E

P

P

P

F

G

E

Solvents & Lacquer

P