Glossary

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ECH - Epichlorohydrin. A polymer used in the manufacture of cellular rubber. Its primary characteristics are resistance to swell when exposed to fuel and high temperature resistance up to 325ºF.

Elastomer - A macromolecular material that returns rapidly to approximately the initial dimensions and shape after substantial deformation by a weak stress and the release of the stress.

Elongation - The extension between bench marks produced by a tensile force applied to a specimen. Expressed as a percentage, this test is used to measure the length of stretch in a material before it breaks.

Ensolite® - A family of continuous PVC/Nitrile material manufactured by Armacell LLC.

EPDM - Ethylene Propylene Diene. A polymer used in the manufacture of cellular rubber. It has excellent resistance to sunlight, ozone and heat, and good resistance to alkalis and acids.

EVA - Ethylene Vinyl Acetate. It is generally used as a co-polymer in polyolefin foams resulting in greater resilience and higher tensile and tear performance.

Evazote® - A closed cell gas expanded crosslinked polyethylene/EVA foam manufactured by Zotefoams. This family of material is ideal for use in recreational sporting goods applications and certain industrial applications.

Expanded Rubber - A term reserved for closed-cell compounds that are made by incorporating gas-forming ingredients in the rubber compound or by subjecting the compound to high-pressure gas, such as nitrogen. These materials are manufactured in sheet, roll, strip, molded, and special shapes by molding or extrusion.

Extrusion - Material that is formed by being forced through a shaping orifice as a continuous body.