Skip to main content

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
  • Hardness Shore A: 70
  • Tensile MPa: 14.5
  • Tensile psi: 2100
  • Elongation (%): 340

Compound 480DR

  • High strength
  • Excellent flex and abrasion resistance
  • Hardness Shore A: 65
  • Tensile MPa: 19.7
  • Tensile psi: 2850
  • Elongation (%): 340

Compound 448AP

  • Developed for automotive brake applications
  • Upper temperature limit of 250°F (121°C)
  • Hardness Shore A: 60
  • Tensile MPa: 15.8
  • Tensile psi: 2300
  • Elongation (%): 280

Compound 508A

  • Excellent weather resistant compound
  • Hardness Shore A: 50
  • Tensile MPa: 10.3
  • Tensile psi: 1500
  • Elongation (%): 400

Chemical and Physical Tables

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

Need help solving a tough engineering problem?