What is Sandwich Panel?

Sandwich panels are composite materials consisting of polyurethane or rock wool inner filling material between two metals. Sandwich panels, which are used as coating material in roofs, facades, interior partitions or cold storages of buildings, stand out in architectural preferences with their high carrying capacity in addition to their fast assembly and high insulation properties. The 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 panel form preference and the thickness of the metals to be used are determined in accordance with the area where the panels will be used and the amount of load on it. In determining the panel thickness, the type of inner filling material and the climatic conditions of the region where the panels will be used are taken into consideration. Sandwich panels create an aesthetic outer shell in buildings by providing water and heat insulation without the need for plaster and paint. Natural aluminum, painted aluminum, painted galvanized sheet or stainless sheet is used in the metal layers of sandwich panels. Color options can be determined from the RAL Catalog according to customer requests.

What is Sandwich Panel?

The aluminum or galvanized surfaces of the roof and facade panels are painted with 23-25 ​​micron coil coating system polyester paint on 5-7 micron epoxy primer. The A-3005 alloy aluminum used has the highest strength, resistance to salt water and outdoor conditions, and does not crack even when bent 180 degrees. The galvanized used in painted sheets has the highest resistance to rust and oxidation with its 275 gr/m2 zinc coating. The density of polyurethane is 40kg/m3, its fireproof class is B2 (DIN 4102-B), and its thermal conductivity coefficient is λ=0.022W/mK (DIN 4108-4). The B2 class fireproof insulation tape at the panel joints prevents air leakage to the outside environment by sticking to the panel as a result of the reaction it enters with the polyurethane.