The name “multiwall” material is due to its internal structure. The air contained in the voids between the layers of the slab – “multiwall”, provides its high thermal insulation properties, and the stiffeners – the greater structural strength of multiwall polycarbonate.
Solid polycarbonate sheets
Solid polycarbonate has significant frost resistance, it can be used for the manufacture of external structures. The latter can be used at temperatures down to -50 ° C, provided there are no mechanical stresses.
more details
