Nitrile Parts
Good resistance to oil and gasoline
Nitrile has very good oil and gasoline resistance, permeability, and heat and abrasion resistance. Its resistance to alkalis and acids all increase as the nitrile content of the compound increases. Nitrile must be specially compounded for resistance to ozone, sunlight and natural aging, and has poor resistance to oxygenated solvents. Nitrile is superior to neoprene in oils and solvent resistance, but is not recommended for applications where it is exposed to severe weathering.
Physical Properties
|
Natural
Rubber
|
SBR
|
EPDM
|
Neoprene
|
Nitrile
|
Urethane
|
Silicone
|
Fluorocarbon
|
|
Specific Gravity
|
0.93
|
0.94
|
0.86
|
1.23
|
1.00
|
1.05 to 1.25
|
0.95 to 1.20
|
1.4 to
1.95
|
|
Durometer, Range
|
30-100
|
40-100
|
30-90
|
40-95
|
30-90
|
55-100
|
25-90
|
55-90
|
|
Tensile Strength
|
E
|
F-G
|
VG
|
VG
|
VG
|
E
|
F-G
|
VG
|
|
Elongation
|
VG-E
|
G
|
G
|
G
|
G
|
G-VG
|
VG-E
|
F-G
|
|
Compression Set
|
G
|
G
|
G
|
F-G
|
G
|
G-E
|
G-E
|
G-E
|
|
Heat Resistance
|
F
|
F-G
|
VG-E
|
F-G
|
G
|
F-G
|
E
|
E
|
|
Resilience or Rebound
|
E
|
F-G
|
G
|
VG
|
F-G
|
F-E
|
G
|
F
|
|
Impact Resistance
|
E
|
E
|
G
|
G
|
F
|
G-E
|
P-G
|
E
|
|
Abrasion Resistance
|
E
|
G-E
|
G-E
|
G-E
|
G-E
|
E
|
P-F
|
F-G
|
|
Tear Resistance
|
E
|
F
|
F-G
|
F-G
|
F-G
|
E
|
P-F
|
F
|
|
Cut Growth
|
E
|
G
|
G
|
G
|
G
|
G-E
|
P-F
|
P-F
|
|
Flame Resistance
|
P
|
P
|
P
|
G
|
P
|
P-F
|
F-G
|
VG-E
|
|
Impermeability, Gas
|
F
|
F
|
F-G
|
F-G
|
G
|
P-F
|
F-G
|
E
|
|
Weathering Resistance
|
P-F
|
F
|
E
|
VG
|
F-G
|
G-E
|
E
|
E
|
|
Low Temperature Limit*
|
-10° TO -50°F
|
0° TO -50°F
|
-20° TO -60°F
|
-10° TO -50°F
|
-30° TO -40°F
|
-10° TO -50°F
|
-65° TO -150°F
|
+10° TO -40°F
|
|
High Temperature Limit*
|
158° TO 225°F
|
158° TO 225°F
|
300° TO 350°F
|
225°F
|
275°F
|
250°F
|
400° TO 550°F
|
400° TO 450°F
|