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Styrene Butadiene

Styrene Butadiene (SBR)

Styrene butadiene is a low cost, general-purpose elastomer. Known as Buna-S, it was originally developed to replace natural rubber in tires. SBR exhibits very good flex fatigue resistance and is resistant to many polar type chemicals such as alcohols and ketones. It is also widely accepted for use in automotive brake fluids. SBR, however, is not resistant to petroleum based fluids.

Compound 480E

  • Good general purpose compound
  • Specified for static sealing applications

Compound 480DR

  • High strength
  • Excellent flex and abrasion resistance

Compound 448AP

  • Developed for automotive brake applications
  • Upper temperature limit of 250°F (121°C)

Compound 508A

  • Excellent weather resistant compound
  • 50 Shore A hardness
CompoundHardness Shore ATensile MPaTensile psiElongation (%)
480E7014.52100340
480DR6519.72850340
448AP6015.82300280
508A5010.31500400

Chemical and Physical Tables

Click below to view the Elastomers/Materials: Chemical and Physical Tables PDF