Rubber Compound Selection & Comparison Guide |
||||||||||||||
Properties Chemical Name |
(Polyisoprene) |
(Styrene
Butadiene) |
Isobutylene
Isoprene |
(Butadiene Acrylonitrile) |
(Chloroprene) |
(polysiloxane) |
Hypalon*
Chlorosulfonated
polyethylene |
Rubber Ethylene
Propylene Diene |
Epichlorohydrin |
Chlorinated
Polyethylene |
Fluoro
Elastomer |
Urethane |
||
SAE J200-ASTM D-2000 Classification |
AA |
AA |
AA |
BF, BG, BK, CH |
BC, BE |
GE |
CE |
CA |
CH |
BC, BE, BC |
HK |
BG |
||
Tensile Strength (psi) Pure Gum |
>3000 |
<1000 |
>1500 |
<1000 |
>3000 |
<1500 |
>1500 |
<1000 |
<1000 |
>1500 |
1200 |
3000-8000 |
||
Tensile Strength (MPa) Pure Gum |
>20 |
<7 |
>10 |
<7 |
>20 |
<10 |
>10 |
<7 |
<7 |
>10 |
>8 |
20-56
|
||
Tensile Strength (psi) Black Loaded Stock |
>3000 |
>2000 |
>2000 |
>2000 |
>3000 |
>3000 |
>2500 |
>200 |
2500 |
>2500 |
1500-3000 |
3000-8000 |
||
Tensile Strength (MPa) Black Loaded Stock |
>20 |
>14 |
>14 |
>14 |
>20 |
>10 |
>17 |
>14 |
17 |
>17 |
10-20 |
20-56 |
||
Hardness Range (ºA Shore) |
30-90 |
40-90 |
40-75 |
40-95 |
40-95 |
40-80 |
40-95 |
30-90 |
40-90 |
60-90 |
50-90 |
80A-75D |
||
Specific Gravity (Base Material) |
0.93 |
0.94 |
0.92 |
1.00 |
1.23 |
1.24-2.05 |
1.12 |
0.86 |
1.27-1.36 |
1.16-1.32 |
1.80 |
1.02-1.20 |
||
Adhesion to Metals |
Excellent |
Excellent |
Good |
Excellent |
Excellent |
Excellent |
Excellent |
Fair |
Fair to Good |
Fair to Good |
Fair to Good |
Excellent |
||
Adhesion to Fabrics |
Excellent |
Good |
Good |
Good |
Excellent |
Excellent |
Good |
Good |
Fair to Good |
Fair |
Good |
Very Good |
||
Tear Resistance |
Very Good |
Fair |
Good |
Fair |
Good |
Poor |
Fair |
Fair |
Fair to Good |
Fair |
Fair to Good |
Excellent |
||
Abrasion Resistance |
Excellent |
Good to Excellent |
Good |
Good |
Excellent |
Poor |
Excellent |
Good to Excellent |
Fair to Good |
Good |
Good |
Outstanding |
||
Compression Set |
Good |
Good |
Fair |
Good |
Fair to Good |
Fair |
Fair |
Good |
Poor |
Good |
Excellent |
Fair |
||
Rebound : |
Cold |
Excellent |
Good |
Poor |
Good |
Good |
Excellent |
Fair |
Excellent |
Good |
Fair |
Fair |
Good |
|
Hot |
Excellent |
Good |
Very Good |
Good |
Very Good |
Excellent |
Good |
Excellent |
Good |
Good |
Good |
Good |
||
Dielectric Strength |
Excellent |
Excellent |
Excellent |
Poor |
Very Good |
Good |
Very Good |
Outstanding |
Good |
Excellent |
Very Good |
Excellent |
||
Electrical Insulation |
Good to Excellent |
Good to Excellent |
Good to Excellent |
Poor |
Fair to Good |
Excellent |
Good |
Outstanding |
Good |
Good |
Good |
Good |
||
Permeability to Gases |
Fairly Low |
Fairly Low |
Very Low |
Low |
Low |
Fairly Low |
Low to Very Low |
Fairly Low |
Low to Very Low |
Very Low |
Very low |
Fairly Low |
||
Acid Resistance : |
Dilute |
Fair to Good |
Fair to Good |
Excellent |
Good |
Excellent |
Excellent |
Excellent |
Excellent |
Fair to Good |
Excellent |
Good to Excellent |
Fair |
|
Concentrated |
Fair to Good |
Fair to Good |
Good |
Good |
Good |
Fair |
Good |
Good |
Fair |
Good |
Excellent |
Poor |
||
Solvent Resistance : |
Aliphatic
Hydrocarbons |
Poor |
Poor |
Poor |
Excellent |
Fair to Good |
Poor |
Fair to Good |
Poor |
Excellent |
Good |
Excellent |
Fair to Good |
|
Aromatic
Hydrocarbons |
Poor |
Poor |
Poor |
Good |
Fair |
Poor |
Fair |
Poor |
Good |
Fair |
Excellent |
Poor |
||
Oxygenated (Keytones etc) |
Good |
Good |
Good |
Poor |
Poor to Fair |
Fair |
Poor to Fair |
Excellent |
Poor |
Fair |
Poor |
Poor |
||
Lacquer solvents |
Poor |
Poor |
Fair to Good |
Fair |
Poor |
Poor |
Poor |
Fair to Good |
Fair |
Fair |
Poor to fair |
Poor |
||
Resistance To |
Swelling in lubricating oil |
Poor |
Poor |
Poor |
Very Good |
Good |
Fair |
Good |
Poor |
Excellent |
Good |
Excellent |
Good |
|
Oil and Gasoline |
Poor |
Poor |
Poor |
Excellent |
Good |
Fair |
Good |
Poor |
Excellent |
Good |
Excellent |
Good |
||
Animal & Vegetable Oil |
Poor to Good |
Poor to Good |
Very Good |
Very Good |
Good |
Good to Excellent |
Good |
Good to Excellent |
Excellent |
Good |
Excellent |
Good |
||
Water Adsorption |
Very Good |
Good to Very Good |
Very Good |
Good |
Good |
Excellent |
Good |
Excellent |
Good |
Very Good |
Very Good |
Very Good |
||
Oxidation |
Good |
Fair |
Excellent |
Good |
Very Good |
Excellent |
Excellent |
Excellent |
Good |
Excellent |
Outstanding |
Excellent |
||
Ozone |
Poor |
Poor |
Excellent |
Fair |
Very Good |
Excellent |
Outstanding |
Outstanding |
Excellent |
Excellent |
Outstanding |
Excellent |
||
Sunlight Aging (UV) |
Poor |
Poor |
Very Good |
Poor |
Very Good |
Excellent |
Outstanding |
Outstanding |
Good |
Outstanding |
Outstanding |
Very Good |
||
Heat Aging |
Fair |
Fair to Good |
Very good |
Good |
Good |
Outstanding |
Very Good |
Excellent |
Very Good |
Very Good |
Outstanding |
Fair to Good |
||
Low Temperature |
Very Good |
Very Good |
Good |
Fair to Good |
Good |
Outstanding |
Good |
Excellent |
Good to Very Good |
Good |
Fair to Good |
Excellent |
||
Flame |
Poor |
Poor |
Poor |
Poor |
Good |
Fair to Good |
Good |
Poor to Good |
Poor to Fair |
Good |
Excellent |
Fair to Good |
||