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Elastomer Selection Guide

Elastomers
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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This technical information has been contributed by
Star-Glo Industries, LLC

Click on Company Name for a Detailed Profile

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