The exterior wall thermal insulation decorative board is an energy-saving wall decoration building material developed in recent years. The surface is metal embossed, with brick patterns, stone patterns, water ripples and other patterns. Seven times of special resin coating, there are more than 50 colors to choose from, and it is guaranteed not to fade for 15 years. The middle of the board is polyurethane foam to form a thermal insulation and heat insulation layer, and its interior is an independent closed air bubble structure. The aluminum foil pasted on the back can effectively reflect the heat source and play the role of heat insulation, heat preservation and moisture resistance. The combination of concave-convex plug-in and groove type makes the construction very simple.
Sandwich panels are mainly used in the roofs and exterior walls of public buildings, composite houses, industrial factories, warehouses, such as waiting halls or waiting halls in stations, sports venues, cinemas and auditoriums, exhibition halls and exhibitions, museums, etc; Later, with the continuous progress of society, industries such as electronics and medicine developed rapidly. In the manufacturing process of products in these industries, it was necessary to provide a production environment with high cleanliness. Color coated sandwich panels are widely used in production and work environments with cleanliness requirements due to their low adhesion of dust to the surface, ease of cleaning, and fewer joints. Due to the flexible disassembly and assembly of sandwich panels, polyurethane sandwich panels are also widely used as partition and ceiling materials inside the factory building.
