How concerned should I be about this corrosion?
I noticed the other day while washing it & when I touched it I got like a white power on my finger, if it was a regular car my 1st thought is rust? but is it not wood under aluminum?
Forum Discussion
That's either electrolytic or galvanic corrosion. The results of each type of corrosion can be similar and can occur at an alarming rate.
Electrolytic corrosion is caused by a current from an external source, which is often the campers own battery or shore supply. The current that causes electrolytic action is called "stray current" and usually emanates from a poorly installed electrical circuit or a bad earthing (ground) arrangement, like a poorly installed electrical circuit or bad ground arrangement or a current leak due to damp connections.
Galvanic corrosion is caused by an electric current generated by two different metals in a conducting medium such as seawater. The "dissimilar" metal that is reacting with the skin could just be the metal fasteners used in the wood frame of the camper.
It will be difficult to say which type of corrosion this is without removing the skin over that area. One thing I think we can say for certain though, it's wet under that area.
:):)
Electrolytic corrosion is caused by a current from an external source, which is often the campers own battery or shore supply. The current that causes electrolytic action is called "stray current" and usually emanates from a poorly installed electrical circuit or a bad earthing (ground) arrangement, like a poorly installed electrical circuit or bad ground arrangement or a current leak due to damp connections.
Galvanic corrosion is caused by an electric current generated by two different metals in a conducting medium such as seawater. The "dissimilar" metal that is reacting with the skin could just be the metal fasteners used in the wood frame of the camper.
It will be difficult to say which type of corrosion this is without removing the skin over that area. One thing I think we can say for certain though, it's wet under that area.
:):)
