BR (Butadiene Rubber)

Butadiene Rubber (BR) is a synthetic elastomer produced from the polymerization of butadiene. It is known for its exceptionally high resilience, low heat buildup, and excellent abrasion resistance. Structurally, BR has a very flexible polymer backbone, which allows it to maintain elasticity even under repeated dynamic stress. However, it has relatively poor resistance to oils, ozone, and weathering, so it is often blended with other rubbers to improve its durability in harsher environments.
BR is heavily used in the tire industry—especially in tread compounds—because it enhances wear resistance and reduces rolling resistance, contributing to better fuel efficiency. It is also used in conveyor belts, footwear soles, and impact-resistant plastic modification. Industries such as automotive, mining, and manufacturing rely on BR for applications where durability under constant motion is critical.