Styrene Butadiene Rubber (SBR), also known as Buna S, was developed just before WW II and was used extensively by the United States during WW II due to the unavailability of Natural rubber during those years. It is still widely used in tires.

SBR is reasonably priced, has good abrasion resistance and fair weathering properties. It is not especially good with chemicals or solvents.

The temperature range for SBR compounds is -60º to 250º F. PAI offers Black SBR compounds in a hardness range of 40 to 80 durometer. Some white compounds are also available.
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Items
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40 Nominal Durometer Black Color Styrene Butadiene Compound
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50 Nominal Durometer Black Color Styrene Butadiene Compound
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60 Nominal Durometer Black Color Styrene Butadiene Compound
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60 Nominal Durometer Black Color Styrene Butadiene Compound
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70 Nominal Durometer Black Color Styrene Butadiene Compound
Nominal Durometer N/A 40 N/A 50 N/A 60 N/A 60 N/A 70
Color N/A Black
Compound Features N/A Low Temperature N/A High Friction, MIL-PRF-1149 Type I Class 2 N/A General Purpose, MIL-PRF-1149 Type II Class 2 N/A MIL-R-6855 Class 3 Grade 60 N/A General Purpose, MIL-R-6855 Class 3 Grade 70
RoHS Compliant N/A true
REACH Compliant N/A true
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