Galvanic corrosion, as I understand, happens only in the presence of an electrolyte. Stainless fasteners into aluminum in marine applications is a bad idea.
But what about in non-marine applications? For example if I wanted to build an aluminum-framed camper trailer clad in stainless sheet and fastened possibly with aluminum rivets and/or stainless screws and/or common steel bolts, would corrosion be a concern? Say it was stored outdoors, exposed to normal fresh rainfall, not near the ocean with salt spray. I realize fresh water is an electrolyte (esp with natural atmospheric minerals) but is periodic rainfall exposure enough to be of concern?
But what about in non-marine applications? For example if I wanted to build an aluminum-framed camper trailer clad in stainless sheet and fastened possibly with aluminum rivets and/or stainless screws and/or common steel bolts, would corrosion be a concern? Say it was stored outdoors, exposed to normal fresh rainfall, not near the ocean with salt spray. I realize fresh water is an electrolyte (esp with natural atmospheric minerals) but is periodic rainfall exposure enough to be of concern?