Sponge rubber is a flexible and lightweight material that is commonly used in various industries, including automotive, construction, and sports equipment. It is made from natural or synthetic rubber and has a porous, sponge-like texture that makes it an excellent cushioning and shock-absorbing material. Some synonyms for sponge rubber include foam rubber, cellular rubber, rubber foam, and expanded rubber. These terms are often used interchangeably to describe the same material, which is characterized by its ability to compress and rebound easily. Sponge rubber is often used in the production of gaskets, seals, padding, and insulation materials. It is also used in sporting goods such as basketballs, footballs, and protective gear. With its consistent and reliable performance, sponge rubber is a versatile material that has many important applications in modern industry.