The refractor on this is different from mine. I'm sanding down parts of my OV10 now. I've done the copper terminals and the ballast cover and I just did the slipfitter peice. On all three parts I sprayed it with a clear acrilic spraypaint so that the metal will be preserved longer. It also makes the metal glossey and smooth. Are you sure that the OV10 was bare jace? I took the reflector off of the ballast housing and I saw what looked like silver paint. The reflector had light silver paint to difuse glare from the sun I am assuming and the housing has a textured hammard silver finish where the reflector was placed over the housing.