How to deal with aluminum curtain wall surface?
Many domestic manufacturers of spray powder, the weight difference is very large, and some powder auriferous crumbs this powder after hanging to the wall, with the sun angle change, day and evening there is a change, there are differences in wall color shades, selection of powder spray coating Greek attention.
The spray powder, crashworthiness touch abrasion, impact at 50 kg, aluminum deformation, no cracks sprayed coatings, no off layer intact, anti-acid and mortar. The only drawback afraid UV long-term exposure, easy to produce color differences in yin and yang face after a few years.
Another method for the surface treatment of aluminum curtain wall is electrostatic spraying. Spraying is divided into powder coating and liquid spray. Powder coating material mainly: polyurethane, polyethylene expansion resin, epoxy resin and other raw materials with high color retention, pigment, obtained dozens of different color powder coating.
This disadvantage can be said that can not be eliminated, not the result of production technology, but because aluminum is not by a group number, chemical composition, have a small difference, when coupled with oxidized electrolyzer liquid current density and other factors are not completely the same, so How much are oxidized color difference, see leaflet may not be obvious, if all row together that is very obvious. So aluminum curtain wall aluminum surface treatment, can in no way anodized.
Aluminum curtain wall surface treatment can be divided into two kinds of methods, one is anodized, the other is electrostatic spraying. Anodized oxide film is generally in 12μ more, the color only bronze and white color monotonous, more serious drawback is that each block of aluminum sheet plate surface color shades, many block wall panels together to form the overall effect of a curtain wall very ugly.
