Styrene Butadiene Rubber (SBR) is a synthetic rubber copolymer composed of styrene and butadiene monomers. The ratio of these monomers can be varied to adjust the properties of the final rubber. For example, a higher styrene content results in a rubber with better tensile strength and abrasion resistance, while a higher butadiene content results in a rubber with better elasticity and resilience. SBR is known for its good abrasion resistance, tensile strength, and resilience. It is also relatively inexpensive to produce, making it a popular choice for a wide range of applications. Due to its excellent balance of properties, SBR is widely used in the production of tires, footwear, adhesives, and other products.