SBR Rubber Polymer:
Properties, Characteristics and Resistances
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General Information
Common Name:
SBR, Buna-S
Chemical Name:
Styrene-butadiene
Generally Resistant To:
Abrasion, Water, Moderate, Chemicals, Organic Acids, Alcohols, Ketones
and AldehydesGenerally Attacked By:
Ozone, Sunlight, Strong Acids, Fats, Oils, Open Flame, Grease and
Most HydrocarbonsASTM D 2000 / SAE J200 Classification:
AA, BA
MIL-R-3065 / SAE J-14 / MIL-STD-417 Classification:
RS
ASTM D-1418 Designation:
SBR
Physical Properties
Elongation:
450% to 600%
Hardness Range (Durometer Shore A):
40 to 90
Mechanical Properties
Compression Set:
Good
Rebound Rating:
Poor to Excellent
Flex Cracking Resistance:
Good
Abrasion Resistance:
Excellent
Tear Resistance:
Fair to Good
Impact Resistance:
Excellent
Flame Resistance:
Poor
Thermal Properties
Minimum Service Temperature:
-70°F
Maximum Service Temperature:
+220°F
Environmental Resistance
Recommended Shelf Life:
3 to 5 years
Weather Resistance:
Fair to Good
Sunlight Resistance:
Poor
Ozone Resistance:
Poor
Oxidization Resistance:
Fair to Excellent
Water Resistance:
Very Good
Steam Resistance:
Fair to Good
Gas Permeability:
Fair
Radiation Resistance:
Good, 3 x 105 Ga Gy
Poor, 2 x 106 Ga Gy
Chemical Resistance
Acetone:
Minor to Moderate Effect
Amonium Hydroxide:
NOT RECOMMENDED
Animal Fats:
NOT RECOMMENDED
Carbon Dioxide:
Minor to Moderate Effect
Chlorine:
DRY:
NOT RECOMMENDED
WET:
NOT RECOMMENDED
Fluorine (Liquid):
- - -
Fuel Oil:
NOT RECOMMENDED
Gasoline:
NOT RECOMMENDED
Hydrochloric Acid 37%:
HOT:
NOT RECOMMENDED
COLD:
Minor to Moderate Effect
Hydrochloric Acid Concentrate 37%:
HOT:
NOT RECOMMENDED
COLD:
NOT RECOMMENDED
Kerosene:
NOT RECOMMENDED
Methyl Ethyl Ketone:
NOT RECOMMENDED
Mineral Oil:
NOT RECOMMENDED
Naptha:
NOT RECOMMENDED
Natural Gas:
Moderate to Severe Effect
Nitric Acid:
Concentrate:
NOT RECOMMENDED
Dillute:
NOT RECOMMENDED
Red Fuming:
NOT RECOMMENDED
Petroleum:
Below 250:
NOT RECOMMENDED
Above 250:
NOT RECOMMENDED
Phosphoric Acid:
20%:
Moderate to Severe Effect
45%:
NOT RECOMMENDED
Propane:
NOT RECOMMENDED
Salt Water:
RECOMMENDED: Little or Minor Effect
Skydrol:
Skydrol 500:
NOT RECOMMENDED
Skydrol 7000:
NOT RECOMMENDED
Sodium Hydroxide:
RECOMMENDED: Little or Minor Effect
Sulfuric Acid:
Concentrate:
NOT RECOMMENDED
Dillute:
Moderate to Severe Effect
20% Oleum:
NOT RECOMMENDED
Toluene:
NOT RECOMMENDED
Transformer Oil:
NOT RECOMMENDED
Vegetable Oils:
NOT RECOMMENDED
Vinegar:
Minor to Moderate Effect
Recommended Storage Conditions
- Actual shelf life could vary dramatically based on storage conditions
- Store in a cool, dry place with temperature below 75°F
- Keep away from direct heat or open flames
- Avoid contact with solvents or other fluids
- Do not store in direct sunlight
- Keep products wrapped or sealed to minimize the absorption of moisture
- Store in a relaxed condition free from tension, compression or other deformation
Please note that information presented here is general to SBR polymer. The properties and characteristics of manufactured rubber products may vary based on polymer type and formulation. Our rubber products are a proprietary blend of various polymers formulated to meet stated physicals and specifications. The named product polymer is not necessarily the primary polymer representing the highest percentage of the polymer blend. Determination of the suitability of the goods for the uses and applications contemplated by Buyer and others shall be the sole responsibility of the Buyer or user. No guaranty is given with respect to length of service on any particular application. Suggestions or recommendations made by Seller in its product literature concerning uses or applications of the goods are believed to be reliable, but Seller makes no warranty or guaranty of results to be obtained since the conditions of the use and application by Buyer and others are beyond Seller’s control.
View complete Terms & conditions of Sale for suitability of use and formulations
Data presented here was gathered from several sources including Uniroyal Chemical Company, Inc., The Los Angeles Rubber Group, Inc., and Compass Publications.
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