.312" C/S (5/16") (8 MM)

This o-ring cord stock is supplied in black EPDM (EPR) 70 Shore A with a cross section of 0.312 in (8 mm), catalogued under part number 0282312. It supports field repair of oversized or non-standard sealing grooves without a special tooling charge.

EPDM (EPR) is widely chosen for good electrical insulating characteristics, outstanding weather, ozone and sunlight resistance. It resists water and steam, phosphate ester hydraulic fluids, and brake fluid. Exposure to aromatic hydrocarbons or petroleum oils and fuels will shorten service life.

You will find this material specified across solar and roofing assemblies, water and steam systems, and brake and phosphate ester systems.

0282312 ships by the foot. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.