Electrolysis on new camper
I purchased a new camper recently and after only three weeks of use, I see evidence of electrolysis on one of the outside aluminum panels. The dealer has said he will contact the manufacturer to se...
Forum Discussion
Magnetism has little to do with galvanic corrosion in dissimilar metals. What you need are two materials very close in the galvanic series (having similar galvanic potential). While 304 stainless (common stainless fasteners) and 316 stainless (less common and less magnetic) have different magnetic properties, they have nearly the same galvanic potential, and therefore the same galvanic corrosion problems in contact with aluminum. In fact plain steel is better in this respect, except it will rust quickly (this is different than galvanic corrosion).
When stainless fasteners are used with aluminum, they must be electrically isolated by a non-conductive washer, if galvanic corrosion is a concern. There are aluminum fasteners available which might also solve the problem.
Google "galvanic series chart" for information on the disease and cure.
When stainless fasteners are used with aluminum, they must be electrically isolated by a non-conductive washer, if galvanic corrosion is a concern. There are aluminum fasteners available which might also solve the problem.
Google "galvanic series chart" for information on the disease and cure.
