Answer :
Ed Co. manufactures O-rings in two sizes, large and small, using the same material, typically an elastomer like Nitrile Rubber or Silicone, chosen for its suitable properties. The exact material is based on the application's demands, and the two sizes require different amounts of this material.
The question pertains to the standard materials used in the manufacturing of O-rings by Ed Co. Typically, O-rings can be made from a variety of elastomers, plastics, or metals, depending on the application's requirements for temperature, chemical compatibility, and pressure. Common materials used for O-ring production include Nitrile Rubber (Buna-N), Silicone, Neoprene, Fluorocarbon (like Viton), Ethylene Propylene Diene Monomer (EPDM), and Polyurethane.
The specific material chosen by Ed Co. would be determined by the intended usage of the large and small O-rings, which while varying in size, might have similar performance requirements. Both types of O-rings would share the same material to maintain uniform properties such as flexibility, chemical resistance, and temperature tolerance, albeit in different amounts due to their size difference. It's important to note that in manufacturing, standard materials are selected to optimize performance and cost-effectiveness for the end application.