OK, this specific question isn't strictly "age old". In fact, my Googling around the web hasn't turned up any answers or opinons that are relevant thus far. Here's hoping that one of you forum denizens can help me out.

Has anyone here used Por15 for corrosion protection? I've seen a lot of talk in automotive forums, but I can't find anyting relevant to the homebuilt corrosion discussion. It was reccommended by the guy at a Sherwin-Willams Automotive store, but I'd say it's safe to take his knowledge on aircraft construction with a grain of salt.

Any ideas, anyone? I'm building a Zenith 750 Cruzer, which uses 6061-T6 AL for most of its components.