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Elastomer Selection Guide
The comparative properties listed in this selection guide are intended to help designers and users of rubber products to make preliminary choices of material. Final selections should be based on tests using samples of the elastomers chosen. The tests should simulate the actual service conditions expected, and samples should be properly compounded to optimize the particular properties desired.
Common Name
Base Polymer |
Chemical Name |
Material Designation (ASTM D-2000,
SAE J 200 Classification) |
ASTM D7-35,
SAE J-14 &
MIL-R-3065
(MIL-STD-417) |
ASTM
D-1418
Designation |
Tensile Strength
(PSI)
Pure Gum |
Black Loaded Stocks |
Hardness Range (Durometer A) |
Specific Gravity (Base Material) |
Adhesion
to
Metals |
Adhesion
to
Fabrics |
Tear Resistance |
Abrasion Resistance |
| Natural Rubber |
Polyisoprene |
AA |
R(N) |
NR |
Over
3000 |
Over
3000 |
30-90 |
0.93 |
E |
E |
VG |
E |
SBR or GR-S
or Buna S |
Styrene
Butadiene |
AA |
R(S) |
SBR |
Below
1000 |
Over
2000 |
40-90 |
0.94 |
E |
G |
F |
G-E |
| Butyl |
Isobutylene
Isoprene |
AA |
R(S) |
IIR |
Over
1500 |
Over
2000 |
40-75 |
0.92 |
G |
G |
G |
G |
| Butadiene |
Polybutadiene |
AA |
R(S) |
BR |
Below
1000 |
Over
2500 |
40-80 |
0.94 |
E |
G |
G |
E |
EPDM or
EP Rubber |
Ethylene
Propylene |
BA,
CA, DA |
R(S) |
EPDM |
Below
1000 |
Over
2000 |
30-90 |
0.86 |
G |
G |
F |
G-E |
| Neoprene |
Chloroprene |
BC, BE |
SC |
CR |
Over
2000 |
Over
2000 |
15-95 |
1.23 |
E |
E |
G |
VG |
| CPE |
Chlorinated
Polyethylene |
BC,
BE, CE |
SC, SB |
CM |
Over
1500 |
Over
2500 |
60-90 |
1.16-1.32 |
F-G |
F |
F |
G |
Nitrile or NBR
or Buna N |
Acrylonitrile
Butadiene |
BF, BG,
BK, CH |
SB, SA |
NBR |
Below
1000 |
Over
2000 |
40-95 |
1.00 |
E |
G |
F |
G |
| Urethane |
Polyester/
Ether Urethane |
BG |
SB |
AU, EU |
3000
to
5000 |
3000
to
5000 |
30-75D |
1.02-1.20 |
E |
VG |
E |
O |
| Hypalon |
Chlorosulfonated
Polyethylene |
CE |
SC |
CSM |
Over
1500 |
Over
2500 |
40-90 |
1.12 |
E |
G |
F |
VG |
Epichlorohydrin
Rubber |
Polyalkylene
Oxide |
CH |
SB, SA |
CO/ECO |
Below
1000 |
2500 |
40-90 |
1.27-1.36 |
F-G |
F-G |
F-G |
F-G |
| Acrylic |
Polyacrylate |
DF, DH |
TB |
ACM/ANM |
Below
1000 |
2200 |
40-90 |
1.10 |
VG |
VG |
F |
F |
| Silicone |
Polysiloxane |
FC,
FE, GE |
TA |
PSi; PVSi,
Si, VSi |
Below
1200 |
Over
1200 |
20-85 |
1.14-2.05 |
E |
E |
P |
P |
| Fluorosilicone |
Fluoroalkyl
Polysiloxane |
FK |
TA, TB |
FVS |
Below
1500 |
Over
1500 |
60-90 |
1.30-2.20 |
E |
E |
P-F |
P |
| Fluorocarbon |
Fluorinated
Hydrocarbon |
HK |
TB |
FPM |
1200 |
1500
to
3000 |
60-90 |
1.8 |
F-G |
G |
F-G |
G |
| O=Outstanding, E=Excellent, VG=Very Good, F=Fair, P=Poor |
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