The development of Aldyl piping systems at DuPont began with the production of Delrin, a trade name for polyoxymethylene, a type of thermoplastic used to manufacture small gear wheels, ski bindings, knife handles and other popular commercial uses. DuPont developed Delrin in the early sixties and built a plant in Tulsa, Oklahoma for its production in 1963. Between 1963 and 1973, the product became known as Aldyl pipe and was produced in Tulsa, Pencader, and Hilcote, England.The production of Aldyl soon became a very profitable invention for DuPont, especially for use in distributing natural gas for gas and electric companies in the U.S. and U.K. In addition to the production of plastic pipe, DuPont also manufactured pipe fittings and a commercial system for joining the fittings to the pipe.

Aldyl piping was a successful venture for DuPont, but its use was questioned when slow cracks appeared in the pipe causing a dangerous possibility of explosion. The Haon papers document several instances of litigation brought by gas companies from 1979 through 1989.