Styrol butadiene rubber (SBR)

The styrol butadiene rubber is the oldest and with regards to the used amount the most important synthetic rubber. Compared to NR, SBR features a better wearing resistance, better heat and ageing resistance, but lower elasticity and a worse cold flexibility. The mineral oil resistance is somewhat better than with NR.

SBR is for Shore-hardness Shore A 35-90 available.

Areas of application: Two thirds of the world production is used for the production of tyres. Other applications like with NR. Very often NR is blended with SBR, e.g. with the production of tyres.