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Owner of data set BEWI ASA, Insulation and Construction |
Technical purpose This Environmental Impact Statement (EPD) refers to cut products produced by BEWI PLASTIMAR in EPS 100 with a nominal density of 20 kg/m3.
Applications:
Expanded polystyrene (EPS) is a common material used for thermal insulation of buildings, including floors, walls and roofs, among other
construction applications.
Characteristics:
EPS is a solid and rigid insulation material, it is a polymer foam, consisting of air-filled polystyrene closed cells (98% air). As 98% of the material is air, EPS provides good insulating properties at a low weight.
Its main properties are low thermal conductivity, resistance to compression and flexion, resistance to traction perpendicular to the faces. Other characteristics of the material include low moisture absorption, long service life, high compressive strength and 100% recyclable.
Manufacture:
EPS is manufactured through permeating polystyrene beads with pentane, allowing the beads to expand when exposed to steam. This addition of a so-called blowing agent adds 4% - 6% w/w. The expanded polystyrene (EPS) beads are then fed into a block molding machine, where steam and pressure forms large blocks of EPS. The amount of EPS going into the mold determines the density of the block. After molding, the remaining blowing agent, pentane, is aired out and the blocks are cut into the desired shape |
