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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Star-Glo Industries, LLC
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