| Rubber Selection Data Chart |
|
NATURAL
RUBBER |
SBR
|
EPDM
|
NEOPRENE
CR |
HYPALON®
CSM |
NITRILE
NBR |
ACRYLIC ACM |
VAMAC® |
SANTO-PRENE†
|
SILICONE Si |
THERBAN•
HNBR |
VITON® FPM |
FLUORO-
SILICONE FSi |
|
|
COST
FACTOR
|
1
|
1
|
1
|
2
|
3
|
2
|
4
|
4
|
4
|
6
|
8
|
15
|
40
|
|
HARDNESS
RANGE
|
30-95°
|
40-95°
|
30-85°
|
30-90°
|
40-85°
|
40-100°
|
50-85°
|
45-90°
|
50-100°
|
40-80°
|
50-95°
|
50-95°
|
40-80°
|
|
COLOURS
|
Full
Range
|
Full
Range
|
Limited
Range
|
Full
Range
|
Limited
Range
|
Limited
Range
|
Black
|
Limited
Range
|
Full
Range
|
Limited
Range
|
Limited
Range
|
Limited
Range
|
Limited
Range
|
|
HEAT
RESISTANCE (°C) |
|
85°C 115°C |
130°C 150°C |
95°C 125°C |
130°C 160°C |
100°C 130°C |
150°C 180°C |
150°C 180°C |
110°C 115°C |
205°C 300°C |
125°C 160°C |
205°C 300°C |
180°C 200°C |
|
LOW
TEMPERATURE RESISTANCE
|
-60°C
|
-55°C
|
-50°C
|
-40°C
|
-25°C
|
-20°C
|
-20°C
|
-40°C
|
-40°C
|
-60°C
(special grades -80°C) |
-30°C
|
-20°C
|
-60°C
|
|
RESISTANCES
Oxidation Ozone & Weathering |
Fair Poor |
Fair Poor |
Excellent Outstanding |
Very Good Very Good |
Excellent Outstanding |
Good Fair |
Excellent Excellent |
Excellent Excellent |
Good Good |
Excellent Outstanding |
Excellent Very Good |
Outstanding Outstanding |
Excellent Outstanding |
|
OIL
RESISTANCE
*ASTM Oil No. 1 @ 20°C @ 100°C *ASTM Oil No. 3 @ 20°C @ 100°C |
Poor Unsatisfactory Unsatisfactory Unsatisfactory |
Poor Unsatisfactory Unsatisfactory Unsatisfactory |
Fair Unsatisfactory Unsatisfactory Unsatisfactory |
Excellent Good Good Fair |
Excellent Good Excellent Fair |
Excellent Good Excellent Good |
Excellent
100°C Excellent 150°C Excellent Excellent 100°C Fair 150°C Fair |
Excellent
100°C Excellent 125°C Excellent Excellent 100°C Fair 125°C Poor |
Excellent
Fair Fair Fair |
Excellent
Good Good Fair |
Excellent
Excellent Fair Fair |
Excellent 150°C Excellent Excellent 150°C Excellent |
Excellent
150°C Excellent Excellent 150°C Excellent |
|
FUEL
RESISTANCE
*ASTM FUEL B @ 40°C |
Unsatisfactory
|
Unsatisfactory
|
Unsatisfactory
|
Poor
|
Poor
|
Fair
|
Poor
|
Unsuitable
|
Poor
|
Unsuitable
|
-
|
Excellent
|
Fair
(good at low temps) |
|
SOLVENT
RESISTANCE (20°C)
Alcohol Acetone Benzene |
Good Fair Unsatisfactory |
Good Fair Unsatisfactory |
Good Good Unsatisfactory |
Good Fair Unsatisfactory |
Good Fair Unsatisfactory |
Good Unsatisfactory Unsatisfactory |
Good Unsatisfactory Unsatisfactory |
Fair Fair Unsatisfactory |
Good Unsatisfactory Unsatisfactory |
Good Fair Unsatisfactory |
Excellent Good Fair |
Good Unsuitable Good |
Good Unsuitable Good |
|
CHEMICAL
RESISTANCE
Acids Bases |
Fair Good |
Fair Good |
Good Good |
Good Fair |
Very Good Good |
Good Fair |
Poor Poor |
Fair Good |
Good Very Good |
Fair Fair |
Good Good |
Excellent Good |
Good Fair |
|
PHYSICAL
STRENGTH
|
Excellent
|
Good
|
Good
|
Good
|
Good
|
Good
|
Good
|
Good
|
Good
|
Poor
|
Good
|
Good
|
Poor
|
|
COMPRESSION
SET
|
Good
|
Good
|
Good
|
Fair
to Good
|
Fair
|
Good
|
Good
|
Good
|
Fair
|
Fair
|
Good
|
Good
|
Good
|
|
TEAR
& ABRASION RESISTANCE
|
Excellent
|
Good
|
Good
|
Good
|
Good
|
Good
|
Good
|
Good
|
Good
|
Poor
|
Very
Good
|
Good
|
Poor
|
|
RESILIENCE
|
Excellent
|
Good
|
Very
Good
|
Very
Good
|
Fair
|
Good
|
Poor
|
Fair
|
Good
|
Good
|
Fair
|
Fair
|
Fair
|
|
PERMEABILITY
TO GAS
|
Poor
|
Fairly
Low
|
Fairly
Low
|
Low
|
Low
|
Low
|
Low
|
Very
Low
|
Fairly
Low
|
Fairly
Low
|
Good
|
Very
Low
|
Fairly
Low
|
|
ELECTRICAL
STRENGTH
|
Excellent
|
Excellent
|
Excellent
|
Good
|
Good
|
Poor
|
Fair
|
Good
|
Excellent
|
Excellent
|
Poor
|
Good
|
Excellent
|
|
FLAME
RESISTANCE
|
Poor
|
Poor
|
Poor
|
Self-
extinguishing
|
Good
|
Poor
|
Poor
|
Fair
|
Retardent
Grades Available
|
Good
|
Poor
|
Self-
extinguishing
|
Self-
extinguishing
|
|
WATER
RESISTANCE
|
Very
Good
|
Good
|
Excellent
|
Good
|
Very
Good
|
Good
|
Poor
|
Good
|
Good
|
Good
|
Very
Good
|
Good
|
Good
|
The aromatic content of oils has a moderate swelling effect on rubber. ASTM
Oil No.1 (Flash point 243°C, Aniline point 124°C) has a swelling effect.
ASTM Oil No. 3 (Flash point 163°C, Aniline point 70°C) has a sever swelling
effect. Both oils are petroleum based and are fully described in ASTM D471.
•
Bayer Registered Trade Mark
†
Monsanto Registered Trade Mark
Viton ® is a registered trade mark of DuPont Performance Elastomers
© The Mech Spares Rubber Company Ltd. 2006-07