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Panel edge staining
Degradation process occurring in exposed aluminum and steel panelling From Wikipedia, the free encyclopedia
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Panel edge staining is a naturally occurring problem that occurs to anodized aluminium and stainless steel panelling and façades. It is semi-permanent staining that dulls the panel or façade's surface (in particular the edges of the panelling), reducing the natural lustre and shine produced by the anodizing processes used on the aluminium. Panel edge staining may also appear on powder coated aluminium, painted aluminium, stainless steel and titanium surfaces.
 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (November 2010) |
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Causes
Panel edge staining is the by-product of the build-up of dirt and pollution. It is especially more noticeable on buildings using metallic façades in Asia, and regions close to the equator (such as Florida or South East Asia), as higher rates of air pollution,[1] high levels of humidity and consistent rainfall encourage panel edge staining to develop.
The unique top-to-bottom stain pattern of panel edge staining is caused when the build-up of dirt and pollution is washed from the higher panels to the lower panels of a surface by natural precipitation.[2]
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Notes
References
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