How to care for anodized aluminum mast

[Marty McOmber]

Hello,

I recently purchased a 1989 Island Packet 38, with an Isomat Spar. It is adodized aluminum (not painted). I currently have the spar unstepped (the boat was trucked from Mexico).

Before I restep the spar, I'd like to clean it. Any recommedation on materials and techniques? I don't want to harm the anodization.

Thanks,

Marty