Rubber Selection Data Chart
The chart below shows the different rubbers and their properties as related to these questions:
a) What is the highest temperature likely to be encountered in service?
b) What is the highest temperature at which continuous service will be required?
c) What is the lowest temperature at which the componentn must remain operable?
d) What fluids will be encountered in service and at what temperature?
e) Is the frequency of contact with the fluid continuous, intermittent or very occasional (e.g. accidental contamination)?
f) Is long-term weather or ozone resistance an important factor?

NATURAL
RUBBER
EPDM
Neoprene
Nitrile
Hypalon
Acrylic
Vamac
Silicone
Vitone
Fluoro-
Silicone
SBR
Price Grade
1
1
2
2
3
4
4
8
15
40
1
a) Max. Int. Temp (°C)
105°C
150°C
125°C
130°C
160°C
180°C
180°C
300°C
300°C
280°C
115°C
b) Max. Cont. Temp (°C)
75°C
130°C
95°C
100°C
130°C
150°C
150°C
205°C
205°C
200°C
85°C

c) Lowest Temp (°C)
-60°C
-50°C
-35°C
-20°C
-25°C
-20°C
-40°C
-60°C
(-80°C Special)
-20°C
-60°C
-55°C
d,e) Oil Resistant
X
X
X
f) Weather Resistant
X
X
X
Hardness Range
30-95°
30-85°
30-90°
40-100°
40-85°
50-85°
45-90°
40-80°
50-95°
40-80°
40-95°

© The Harboro Rubber Company Ltd. 2002