Mammut Industrial Group Wall Sandwich Panels
Sandwich panel consists of two metal sheets (typically Galvanized, Aluzinc or aluminum) with a core of insulating foam. This foam, which is usually of polyurethane, has a strong adhesion to panel upper and lower sheets due to 7 microns primer applied on bonding side of each sheet. Insulating foam is of rock wool, polystyrene or polyurethane but standard panels are mainly from polyurethane. The main advantages of polyurethane foams are: light weight, excellent heat insulation, high fire resistance (slow burning / refractory), which all affect the price in for different applications.