SBR Styrene Rubber

SBR is a copolymer of styrene and butadiene.

SBR is often blended with other rubbers such as natural rubber (NR), isoprene rubber (IR), and butadiene rubber (BR). The rubber has a chemical resistance very similar to that of natural rubber (NR). However, the tensile strength is significantly lower, though it can be improved with reinforcing fillers such as fine-grained carbon black. The elasticity and low-temperature properties are inferior to natural rubber (NR), while the heat resistance is superior.

Styrene-butadiene rubber (SBR) has poor ozone resistance, which can be improved by adding EPDM or by incorporating antiozonants in combination with protective waxes.

It is used as a replacement for natural rubber (NR) in most applications.

SBR is often referred to as wear-resistant rubber due to its high durability. It also reduces noise in its application.

Primary areas of application:

• Dampers.
• Rubber feet.
• Grommets.
• Mats.
• Conveyor belts.
• Batons.

Used primarily where abrasion and wear need to be avoided.