Duroplast is a composite thermosetting resin plastic developed by engineer Wolfgang Barthel in 1953[2] in the German Democratic Republic.
It is reinforced with fibers (typically waste fabrics from the garment industry) making it a fiber-reinforced plastic similar to fiberglass.
As a result, state-owned automobile manufacturer VEB Sachsenring Automobilwerke Zwickau instead used Duroplast to produce the body shell of the Trabant.
One was developed by a Berlin biotechnology company, which experimented with bacteria to consume the body in twenty days.
In the late 1990s, Sachsenring's developed a disposal solution in which the body shells were shredded and used as an aggregate in cement blocks for pavement construction.