THE ENDLESS POSSIBILITIES OF RUBBER

Stryrene Butadiene (SBR)

The rubber:

When first introduced the name Buna S was used (“Bu” for Butadiene”, “Na” for Sodium” and “S” for Styrene). SBR is a copolymere of styrene and butadiene and is developed as a alternative for natural rubber.

Resistance and properties:

SBR has a better properties where  high temperatures are concerned. With suitable fillers it is a strong rubber although not approaching natural rubber of polychloroprene. Otherwise it has similar chemical and physical properties to natural rubber, with general better abrasion resistance.

Downsides:Poor fatique resistance (especially compared to natural rubber). This rubber is not advised to be used with low temperatures.
Applications:

SBR is used in the tyre industry and in shock isolators, but also in shoe heels and even in chewing gum.