The surface materials used for metal curtain walls mainly include the following kinds: aluminum composite board, single-layer aluminum board, aluminum honeycomb board, fireproof board, titanium zinc plastic.
The aluminum clad plate is composed of two layers of aluminum plates with thickness of 0.5mm inside and outside, and a 2-5mm thick polyethylene or hard polyethylene foam plate sandwiched between them. The plate surface is coated with carbon resin coating, forming a tough and stable film layer with strong adhesion and durability and rich colors. The back of the plate is coated with polyester paint to prevent possible corrosion. Aluminum composite panel is a common panel material when metal curtain wall appeared early.
The single-layer aluminum plate is 2.5mm or 3mm thick aluminum alloy plate, and the surface of the single-layer aluminum plate used for the external curtain wall is consistent with the coating material of the front of the aluminum composite plate, and the toughness, stability, adhesion and durability of the film are consistent. Single-layer aluminum plate is another common panel material of metal curtain wall after aluminum composite plate, and it is used more and more.
Honeycomb aluminum plate is a kind of composite material bonded by adding honeycomb core material between two aluminum plates.
According to the requirements of curtain wall's function and durability, honeycomb aluminum plates with thickness of 10mm, 12mm, 15mm, 20mm and 25mm can be selected respectively. The honeycomb aluminum plate with thickness of 10mm should be bonded by 1mm front aluminum plate, 0.5-0.8mm back aluminum alloy plate and aluminum honeycomb.When the thickness of the honeycomb aluminum plate is over 10mm, the thickness of the front and back aluminum alloy plates shall be 1mm, and the honeycomb aluminum plate used for curtain wall shall be aluminum honeycomb.
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