Styrene Butadiene Rubber - SBR

Common NamesSBR / GRS

Chemical Name: Styrene butadiene

ASTM D1418 Designation: SBR

ISO/DIN 1629 Designation: SBR

ASTM D2000/SAE J200 Type, Class: AA,BA

Description: Also known as Buna S, or GR-S (Government Rubber-Styrene), Styrene Butadiene was the elastomer substituted for Natural Rubber during World War II. Compounded properties are similar to those of Natural Rubber.

Key Use(s): Isolation Dampeners, conveyor belts.

Temperature Range: 
Standard Compound:-55°C (-67°F) to 204°C (400°F)
Special Compounds: -100°C (-148°F) to 204°C (400°F)
 

Hardness (Shore A): 40 to 90

Features: The main use for Styrene Butadiene today is in the manufacturing of automobile tires and conveyor belts.

Limitations: SBR is not recommended for exposure to petroleum oils, most hydrocarbons, strong acids, or ozone.This material is seldom used in modern sealing applications. It has been replaced by better performing materials.