SBR rubber’s distinguishing property is its excellent abrasion resistance. It also adheres well to metals, making it a favorable rubber for seals in many industrial applications. It also has good heat resistance and good heat aging qualities, which are properties that make it a great choice for gaskets.
SBR is often an economical substitute for natural rubber, as they possess similar qualities.
It has a poor resistance to fuel, oils, greases, and hydrocarbons. It also can be vulnerable to ozone, and weathering degrading.
Overall, you will typically find SBR in applications of extreme abrasion, however also isolated from exposure to weathering, oil, and solvents.