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Ted Mooney, P.E. RET
Pine Beach, NJ

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Polished aluminium lifetime for outdoor application

I wonder if the total reflectivity of a polished aluminium mirror, initially measured higher than 95%, will significantly drop through the years in an outdoor application. The mirror is protected by a glass plate but not hermetically. Is there any risk of darkening or bleaching?

Thanks

Ben Hur
buyer - France
August 12, 2008

Try to find out how they do the reflective surface on car tail lights and etc. They are bright and seem to last a very long time in lousy conditions.

James Watts
- Navarre, Florida
August 13, 2008

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