What is a Sandwich Panel?

What is a Sandwich Panel?

   Sandwich panels are composite materials consisting of polyurethane or rock wool filling material between two metals. Sandwich panels, which are used as a coating material in roofs, facades, interior partitions of buildings or cold storage depots, come to the fore in architectural preferences for their quick installation feature, high insulation property as well as high load-carrying capacity. The load-carrying capacity of sandwich panels depends on the panel thickness, the form of the metal surfaces, the density of the panel filling material, and the metal thicknesses. The choice of panel form and the thickness of the metals to be used are determined by the area, where the panels will be used, and the amount of load on it. In determining the panel thickness, the type of filling material and the climatic conditions of the region where the panels will be used are taken into account. Sandwich panels create an aesthetic outer shell in buildings by providing water and heat insulation without the need for plaster and paint. Natural aluminium, painted aluminium, painted/galvanized sheets or stainless sheets are used in the metal layers of the sandwich panels. Colour options can be determined from the RAL Catalogue, according to customer request.

SUPERIOR PROPERTIES OF SANDWICH PANELS
    Aluminium or galvanized surfaces of Roof and Facade panels are painted with 23-25 micron coil coating system polyester paint over 5-7 micron epoxy primer. The strength of the aluminium A-3005 alloy and its resistance to salt water and outdoor conditions is at the highest level, and it does not show any cracking even when bent through 180 degrees. Galvanize used in painted sheets has the highest resistance against rusting and oxidation with its 275 g/m2 zinc coating. The density of polyurethane is 40kg/m3, its fire classification is B2 (DIN 4102-B), and the thermal conductivity coefficient is λ=0.022W/mK (DIN 4108-4). B2 class non-combustible insulation tape at the panel joints adheres to the panel as a result of the reaction with the polyurethane and prevents air leakage to the outside environment.