[LewisM]

Originally Posted by DavidU

I have the same problem, it seems the aluminium parts are dyed not anodized so it fades in sunlight.
http://www.ehow.com/how_8421322_dye-aluminum.html

They are anodised (otherwise the dye used in anodising won't adhere to the alu.) - all anodising is is cathodically altering the alu surface then immersing in hot dye to permeate the open crystalline surface.

SW is obviously cheap, non-UV stable anodising dye, just like cheap Chinese clothes I guess.

I had the same on a QHY5 guidecam - anodising turned gold. I resprayed it lurid green