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Old 08-11-2009, 06:41 PM
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tocohillsguy tocohillsguy is offline
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Discoloration on alloy frames  
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Default Discoloration on alloy frames

I suspect this has been discussed before, but I couldn't find a thread. Has anyone figured out why the alloy frames on some 3rd gens seem to turn yellow? Also, am I correct that the only remedy is to refinish the pistol.
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Old 08-11-2009, 06:59 PM
KurtC KurtC is offline
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From what I've noticed over the years, frames that are anodized here in the US do not use any dye when they are trying to match stainless slides. The aluminum is left it's natural color and is then clear anodized. They start off looking a dull light grey. I suspect that the process is subject to discoloration over time, be it ultra violet degradation, internal corrosion or voodoo.

Frames anodized in Europe, such as early Italian Inox Berettas, seem to have a grey or silver dye added, which hides the natural color (or changes) of the aluminum and gives the frame a much nicer appearance.
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