LAC: Red paint prone to oxidation?

[LL - NY]

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

LL - NY - physics teacher hat on.

On 2/23/06, Huw Powell <audi at humanspeakers.com> wrote:
>
>
>
> > 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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