East Bay Rubber was founded in 1970 to manufacture intricate rubber to metal bonded products. The facilities were quickly expanded to encompass a full range of custom molded goods. EBR devoted all of our attention to these niche markets until 1994. At that time the tooling and technology required to manufacture a full line of laboratory stoppers was purchased from Rhoades Rubber Co. The line has since been refined additional materials and packaging have been made available.