Basement doors

[trickto322]

On our 2006 Tourmaster basement doors have "bubbles" on the tops of them. It looks like rust but I thought they were made of alluminum which does not rust. Has anyone had this and what did you do about it?
thanks
Adrian and Johnnie

[J79Engine]

Who told you aluminum does not rust? It may not be brown normal rust but it sure does show up with Aluminum oxidation type rust seen it on aircraft skin so I know it happens. But to your question I have a 2005 and have not experienced this yet, plenty of iron rust underneath and in the engine fan areas.

[trickto322]

thanks for the chemistry lesson