Rubber is frequently used in automotive and industrial machinery components, medical supplies, and building materials, as well as in vibration-dampening and leveling applications. Its elastic properties also make rubber ideal for a wide variety of sealing and insulation applications. The specific type of rubber you need is determined upon your application, and depends upon: • Durometer/hardness • Tensile strength • Elongation • Temperature range • Resistance to chemicals, abrasion, and the elements

DEFINITIONS Durometer/hardness—Elastomer material hardness is referred to as "durometer" and is measured on the Shore scale (e.g., durometer: 70 Shore A). The higher the durometer number, the harder the material. Elongation—The measured percent increase in original length of a specimen when it breaks. Tensile strength—Measured in psi, tensile strength is the amount of force the material can withstand before rupturing.