I recently had to leave the van out in the *gasp* rain for a week to use the shop for other things.  One of the headlights has condensation in it and the other is half full of water.  I have popped the glass lens off to let the water out, dry and reseal.
One one side the bottom of the light reflector (the part where its shinny aluminum) is a light green.  I tried to rubbed it with a cloth and the green patch got bigger.  I stopped what I was doing and figured that there is a very thin shiny layer on there and I am rubbing it off.
Has anyone had any luck restoring it?
Brett91 Vanagon.Vancouver BC.