The aluminium roof coil with magnesium-manganese alloy is a very cost-effective roofing system material with long service life. The aluminum-magnesium-manganese roofing has many advantages such as environmentally friendly, easy to install, corrosion resistance, beautiful appearance, light weight, high strength and easy processing. It is widely used in airport terminals, aircraft maintenance warehouses, stations and large transportation hubs, conference and exhibition centers, stadiums, exhibition halls, large public recreational facilities, public service buildings, large shopping centers, commercial facilities, residential buildings and other buildings.
The aluminum coil for roofing construction is mainly aluminum-magnesium-manganese alloy 3000 series, such as 3003, 3004, 3005. The outer surface treatment of aluminum coil for roofing includes two categories: natural color non-painted products and painted products:
1, non-painted products: hammer-shaped aluminum alloy plate (irregular pattern), embossed plate (physical way through mechanical embossing, forming a regular pattern); pre-passivated alumina surface treatment board. Such products are not painted on the surface of the aluminum sheet roll, and the appearance of the surface is not high and the price is low.
2, painting products: according to the coating process is divided into: powder coated products and pre-roll coated aluminum. According to the type of paint, the aluminium roof coil can be divided into: polyester, polyamide, modified silicone, epoxy resin, fluorocarbon, etc. The aging of the paint is resistant to the ultraviolet light of the sun as much as possible. Among them, the PVDF paint (fluorocarbon coating) has the best anti-aging property, and it is the most strong uvioresistant organic compound known to humans.
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