Zincs on Keel

[Tsatzsue]

I recently refinished the keel on my V25. The PO had painted it with anti fouling paint and it was peeling off in gigantic chunks with some of the iron. I wire brushed it with an angle grinder down to the bare metal. I then treated it with a rust converter and primed it with an industrial rusted metal primer. After that two coats of grey industrial enamel. I knew that this was not as good as the extensive epoxy treatment that I have seen on some of the posts but hoped for the best. Well rust is poking through and of course the marks where I have dinged the leading edge on rocks etc. are showing rust.



Has anyone thought of attching zincs to the keel? It seems as though that is pretty standard on everything metal. Just a thought.

[MBertin]

I owned a MAC25 and wondering if you have taken your keel detail dimension when you did your repair? Also some picture would be great. Mine is an homemade and I try to find what is the exact shape of the original keel.

Thank you,
Marc,

[Ixneigh]

I have a zinc on my v22.2 centerboard pennant to protect the wire. I doubt a zinc would help much with rusty metal.
I have heard of galvanized steel hulls having lots of zinc to help keep the galvanizing intact.
My keel is encapsulated in glass. There are some rust stains but no bulging or deformation.

Ixneigh