LAC: Red paint prone to oxidation?

[Huw Powell]

> Actually, red and violet (hence UV) are at the complete opposite ends of the
> visible light spectrum, anyone remember ROYGBIV?

That's exactly my point.  Something that appears red is doing so by 
absorbing all the higher energy light, probably including the UV. 
Something that appears blue is absorbing the lower energy redder part of 
the spectrum, and reflecting the higher energy radiation.

>>>If you ask body shops and painters, red is the worst color in terms of
>>>oxidation. It has something to do with the pigments used to color red
>>
>>paint.
>>
>>I always thought the problem was UV rather than oxygen.  Colors at the
>>red end of the visible spectrum reflect or reject less UV, so it gets
>>absorbed and ages/fades the paint.
>>
>>The best examples of this I have seen are Budweiser and Pepsi cans left
>>outside for a long time - the red will be all gone but the blue will
>>still be intact.
>>
>>But I could be completely wrong...
>>
>>--
>>Huw Powell
>>
>>http://www.humanspeakers.com/audi
>>
>>http://www.humanthoughts.org/
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>>
> 
> 

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/