Good Abrasion Resistance • Excellent Impact Strength • Superior Resilience • High Tensile Strength

SBR Rubber Solutions

WARCO’s SBR rubber products deliver the ideal blend of durability and performance. As a copolymer of styrene and butadiene, SBR rubber (commonly known as Buna-S) provides excellent abrasion resistance, impact strength, and high tensile properties. Whether you need a custom SBR rubber sheet or tailored formulations, our solutions are engineered to excel under demanding conditions.

Select any of these drop down options to learn more about SBR Rubber. Our team has organized lists of key properties relating to the rubber products which use the SBR polymer. We encourage you to select through these lists and advise that you reach out to us directly for any questions so we can direct you to our technical team.

General Information

Common Name:
SBR, Buna-S

Chemical Name:
Styrene-butadiene

Generally Resistant To:
Abrasion, Water, Moderate, Chemicals, Organic Acids, Alcohols, Ketones and Aldehydes

Generally Attacked By:
Ozone, Sunlight, Strong Acids, Fats, Oils, Open Flame, Grease and Most Hydrocarbons

ASTM D 2000 / SAE J200 Classification:
AA, BA

MIL-R-3065 / SAE J-14 / MIL-STD-417 Classification:
RS

ASTM D-1418 Designation:
SBR

Elongation:
450% to 600%

Hardness Range (Durometer Shore A):
40 to 90

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

Minimum Service Temperature:
-70°F

Maximum Service Temperature:
+220°F

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

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

  • 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

See Rubber Storage Conditions for more information about how to properly store your rubber products

Benefits of SBR Rubber

  • Excellent Abrasion Resistance: Withstands harsh wear in high-friction applications.
  • Superior Impact Strength: Absorbs shock and resists damage from sudden impacts.
  • High Resilience: Provides excellent recovery and maintains shape under stress.
  • Elevated Tensile Strength: Ensures durability even in strenuous applications.
  • Temperature Flexibility: Performs reliably across a broad temperature range
  • Customizable Formulations: Tailored to meet unique application requirements.
  • Consistent Dynamic Performance: Ideal for applications requiring energy absorption and stability.

Our SBR Rubber Products are available below in Spec & Commercial Grades or as a specialty product.
Each product can be customized to meet your application, such as meeting your specifications, physical properties, & various material aspects.

Applications of SBR Rubber

  • Industrial lining materials and conveyor belt covers

  • Automotive components such as gaskets and seals
  • Custom-molded parts for machinery and equipment
  • Rubber seals and weatherstripping
  • Various applications in manufacturing, where SBR rubber offers a strong alternative to natural rubber or EPDM (EPDM vs SBR rubber comparisons)

Specification Grade SBR Rubber

Specification Grade SBR

Durometer: 75 Temperature Range: -40°F to +180°F
Specs: ASTM D2000 M1AA

SBR MIL–G–1149

Durometer: 50 Temperature Range: -40°F to +200°F
Specs: MIL-R-1149 Class 2

Commercial Grade SBR Rubber

Commercial SBR

Durometer: 40-70 Temperature Range: -40°F to +180°F
Primary Feature: Excellent Physical-Dynamic Properties

Specialty SBR Rubber

Cloth–Inserted SBR – Reduced Polyester Ply

Durometer: 65 Temperature Range: -30°F to +170°F
Primary Feature: Made in the USA

Cloth–Inserted SBR – Reduced Cotton Ply

Durometer: 65 Temperature Range: -30°F to +170°F
Primary Feature: Made in the USA

Cloth–Inserted SBR – Regular Cotton Ply

Durometer: 65 Temperature Range: -30°F to +170°F
Primary Feature: Made in the USA

Cloth–Inserted SBR – Regular Polyester Ply

Durometer: 60 Temperature Range: -30°F to +170°F
Primary Feature: Made in the USA

Compound Number, Durometer and Material Type
030A0494 – 30 Durometer SBR 045A0465 – 45 Durometer SBR 045A0473 – 45 Durometer SBR 045A0474 – 45 Durometer SBR 045A0478 – 45 Durometer SBR
045A0482 – 45 Durometer SBR 045A0483 – 45 Durometer SBR 045A0484 – 45 Durometer SBR 050A0457 – 50 Durometer SBR 050A0464 – 50 Durometer SBR
050A0493 – 50 Durometer SBR 055A0486 – 55 Durometer SBR 060A0431 – 60 Durometer SBR 060A0432 – 60 Durometer SBR 060A0449 – 60 Durometer SBR
060A0452 – 60 Durometer SBR 060A0461 – 60 Durometer SBR 060A0466 – 60 Durometer SBR 060A0476 – 60 Durometer SBR 060A0480 – 60 Durometer SBR
060A0481 – 60 Durometer SBR 060A0485 – 60 Durometer SBR 060A0487 – 60 Durometer SBR 060A0490 – 60 Durometer SBR 060A0491 – 60 Durometer SBR
060A0495 – 60 Durometer SBR 060A8016 – 60 Durometer SBR 060A9898 – 60 Durometer SBR 065A0443 – 65 Durometer SBR 065A0446 – 65 Durometer SBR
065A0447 – 65 Durometer SBR 065A0455 – 65 Durometer SBR 065A0456 – 65 Durometer SBR 065A0458 – 65 Durometer SBR 065A0459 – 65 Durometer SBR
065A0463 – 65 Durometer SBR 065A0469 – 65 Durometer SBR 065A0472 – 65 Durometer SBR 065A0489 – 65 Durometer SBR 065A7470 – 65 Durometer SBR
070A0433 – 70 Durometer SBR 070A0436 – 70 Durometer SBR 070A0437 – 70 Durometer SBR 070A0441 – 70 Durometer SBR 070A0442 – 70 Durometer SBR
070A0460 – 70 Durometer SBR 070A0462 – 70 Durometer SBR 070A0468 – 70 Durometer SBR 070A0479 – 70 Durometer SBR 070A0488 – 70 Durometer SBR
070A7470 – 70 Durometer SBR 075A0448 – 75 Durometer SBR 075A0453 – 75 Durometer SBR 075A0470 – 75 Durometer SBR 075A0471 – 75 Durometer SBR
075A0475 – 75 Durometer SBR 075A8010 – 75 Durometer SBR 080A0434 – 80 Durometer SBR 080A0435 – 80 Durometer SBR 080A0439 – 80 Durometer SBR
080A0450 – 80 Durometer SBR 080A0477 – 80 Durometer SBR 085A0451 – 85 Durometer SBR 085A0454 – 85 Durometer SBR 090A0445 – 90 Durometer SBR
090A0467 – 90 Durometer SBR 090A5125 – 90 Durometer SBR

Data presented here was gathered from several sources including Uniroyal Chemical Company, Inc., The Los Angeles Rubber Group, Inc., and Compass Publications

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