<P> Glad Wrap was invented in Australia by Union Carbide's research chemist, Douglas Lyons Ford, in the early 1960s, working in Union Carbide Australia's Rhodes plant in Sydney . The film was made from polyethylene with a stickifier added, produced as a continuous tube by the blown - film method, the tube then slit to make flat material that was put on rolls, and recently released in a newly designed "Easy Cut Dispenser". It was first introduced to the American market in 1963 in competition with Saran Wrap . </P> <P> Glad Wrap and Glad Bags were introduced in Australia in 1966; Glad was the first to introduce cling - type wrap to the Australian market . </P> <P> In order to promote the product, a competition was run in The Australian Women's Weekly asking readers to write in with suggested uses for the product . The winner of the competition was Lady Gwynnedd Casey, the wife of Lord Casey, the then Governor - General of Australia, who suggested it could be used to cover the hors d'ouvres before guests arrived at her garden party . Second prize went to a woman from western Sydney, who suggested it could be used to wrap up different kinds of buttons in her sewing kit to keep them separate from one another . </P> <P> Union Carbide purchased the Brisbane company, OSO, and in 1968, launched the OSO brand in competition with its own Glad brand . The OSO brand was made to be cheaper than, and inferior to, the Glad brand . </P>

When did glad press and seal come out