The Piral HD Hydrotec panel 15HP21 is a sandwich panel, made up of an insulating core in rigid polyurethane foam covered on both sides with an 80 μm sheet of embossed aluminium. This panel is particularly suitable for the construction of ductworks intended for use in HVAC.
The thickness is 20,5 mm ± 0,5 mm. The rigid polyurethane foam is the result of a chemical reaction between specifically formulated polyols and isocyanates and the expansion of the foam is achieved by using only water as blowing agent.
The density of the PU foam is 52 kg/m3, with a tolerance of ± 2 kg/m3; the overall density of the panel is about 73 kg/m3