Polyurethane foam panel with 45kg/m3 density, 20mm thinckness, coated on both sides with 80/60 micron thick aluminium foil. The black aluminium foil is embossed on both sides and couple with a 2 g/m2 layer of corrosion-resistant polyester paints.This panel is especially suited for use in air-conditioning and heating system installations.External with Black alu foil, Internal with normal Alu foil. Panel Dimension:  3950*1200*20mm Panel thickness:  20mm Foam density:  453kg/m3 Aluminium Thickness:  60/60micron, 80/80micron Thermal conductivity:  0.022w/mk Alu foil:   Embossed/embossed 12sheets/Carton, 56.88sq.m/Caron