Styrene-butadiene

Styrene-Butadiene (SBR) is an elastomeric copolymer consisting of styrene and butadiene. It has good abrasion resistance and good aging stability. SBR is stable in: mineral oils, fats, aliphatic, aromatic and chlorinated hydrocarbons.

• Glas transition temperature approx. -55 °C [1]
• Possible temperature range: approx. -40 to +100 °C (-40 to +212 °F)
• Chemical Type: styrene-butadiene (copolymer)
• Trade names (common): GRS, Buna S (SBR)
• Elongation (%): 450-500
• Useful temperature range: -60 to 120 degrees Celsius (-75 to 250 degrees Fahrenheit)
• Major application characteristics: good physical properties; excellent abrasion resistance; not oil, ozone, or weather resistant; electrical properties good, but not outstanding
• Typical applications: pneumatic tires and tubes; heels and soles; gaskets

Additional recommended knowledge

Weighing the right way

Essential Laboratory Skills Guide

What is the Correct Way to Check Repeatability in Balances?

References

[1] Gent, A. N.; Campion, R. P.; American Chemical Society.Division of Rubber Engineering With Rubber : How to Design Rubber Components; Munich : Hanser Publishers: 1992.