Quote:
Originally Posted by GWN7
If the screws are rusted they are not stainless. Test them with a magnet. Stainless is not magnetic. Stainless is one metal that doesn't react very much aluminum unless there are other chemicals present. Buy good quality stainless replacement screws and spray them with plastic coat or even varnish for a protection layer.
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He didn't say they were.
I have read over the years about SS. Apparently it is not all that strong when the alloy most rust proof is used. Therefore, not very good for fasteners. I don't know what the marine crowd does, but they wouldn't have SS and AL tied together that I know of.
Varnish won't last long in the elements. Richard lives where it rains a lot and gets hot. Tough environment for any coating. Would clear anodizing work better?
I think that's why a lot of AL skins are riveted with AL rivets. So, I vote for AL screws. Maybe SS if they aren't subject to a lot of stress.
Quote:
Originally Posted by Jim Bremner
grease
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Dielectric?