Terminology - E

  • ELONGATION: Increase in length expressed numerically as a fraction or percentage of initial length.
  • EMERGENCY LOCK BULKHEAD: A large boxlike structure used to close off an area around a miter lock gate, so water can be pumped out — leaving an area dry for repair work.
  • EPDM: Ethylene Propylene Diene Monomer (EPDM) is a copolymer of ethylene and propylene. It has excellent resistance to aging, ozone, oxygen, and weathering. EPDM also fairs well in applications up to 300°F and has good low temperature stability. It is also known for good resistance to water, steam, hydraulic fluids and, many diluted acids and alkalis.
  • EXPANDED RUBBER: Cellular rubber having closed cells made from a solid rubber compound.