Water in rudder

[Set2sea]

Hello All,
I thought I fixed the water in Rudder issue.
As detailed here, I filled the rudder tube with epoxy and gouged out top of rudder where rudder tube goes into rudder and filled with 5200.
For the first year or two the rust streaks down the rudder stopped on the hard, over the course of winter, but this year they have returned - Rust coming out from tube fiberglass interface (where I put the 5200).
Understanding that it is the steel frame inside the rudder that is rusting, my question is: Have there been rudder failures due to this situation? Where the frame loses it connection to Rudder tube?
Thanks

[Ron Hill]

Paul : You aren't going to like my answer, but YES there have been incidences of the steel grid breaking away from the stainless rudder tube.  However, in the cases I know of there was a more than gentle grounding involved.

A thought

[Set2sea]

Paul : You aren't going to like my answer, but YES there have been incidences of the steel grid breaking away from the stainless rudder tube.  However, in the cases I know of there was a more than gentle grounding involved.

A thought

Thank Ron

[KWKloeber]

Speaking of a wet rudder - here's an interesting vid from Boatworks on rebulding a waterlogged, foam-filled rudder. 
See the subsequent vids for 'the rest of the story.'

https://www.youtube.com/watch?v=MRXNnFx7DBQ