Masonite, a wood hardboard, was bonded using natural lignin, (although most modern MDF particle boards use synthetic thermosetting resins).
The cases are sheet metal with wooden side panels, and a fiberboard or Masonite bottom cover.
She paints principally on rigid supports such as wood or Masonite sheets.
The company was created by Wally Byam, a lawyer by training, who began building trailers out of Masonite in his backyard in Los Angeles during the late 1920s.
Santa Clara Pueblo artist Pablita Velarde created a series of more than 70 paintings of everyday Native American life in New Mexico for Bandelier National Monument between 1937 and 1943, painted mostly on masonite using casein paints.
Some of her other best-known works use faded, once-bright drinks crates; thinly-sliced yellow Schweppes boxes; ragged domestic items such as torn floral lino and patchy enamelware; vernacular building materials such as galvanised tin, corrugated iron and masonite; and fibrous, rosy cable reel ends.