Founded in 1971, Di-Bi Spa entered the expanded polystyrene market with a move that went against the grain at the time: focusing on quality and high-performance products . Soon after, the company became the first in Europe to produce ultra-high-density materials (35-40 kg/m3). In the early 1990s, the traditional EPS panel production was joined by two new lines dedicated to thermal insulation, roof waterproofing, and acoustic insulation for buildings .