Rust on Bilge Keels

[oakleyb]

What preperation is required to these rusty areas before anti fouling can be applied. Also looking to get a some Poliglow to restore shine to a chalky white hull. Will this be achieved do you think with polyglow, or should i attack it differently using other recomended polishes /forums/images/graemlins/confused.gif

 

[sailorman]

primocon on the keel
hull > Mcguires products

 

[Thresher]

If you search these forums for 'sandblast' and 'needle gun' you will find many previous posts on this subject .
I am doing my bilge keel plates this winter and have gone for the option of needle gunning them, letting them rust for a couple of months and then treating the rust with jenolite or the scewfix equivalent. Then I'm going to antifoul straight on top of that. It will be interesting to see how it looks at the end of the season.

 

[ashanta]

I have used blakes bilge prime for years. It's very effective and is designed for this application specifically. Just wire brush the rust areas and apply the recommended number of coats. Once complete you can antifoul directly on the primer.

Regards.

peter.

 

[oldharry]

[ QUOTE ]
. It will be interesting to see how it looks at the end of the season.

[/ QUOTE ]

I can tell you now - rusty! Jenolite deals with existing rust, but does nothing to prevent further rust from forming. Yes I know what the blurb says. And it doesnt - least of all in seawater.

The metal must be fully protected to stop rust breaking out again; this means x coats of a suitable metal primer (x being manufs recommended quantity.

I have used Primocon to considerable effect on my bilge keels, having been down the jenolite etc route without success. I prepared by needle gunning all metal, then 6 coats of Primocon (it was on offer locally!), followed by regualr antifouling, and so far there are only two places where it has failed, in both cases where the paint coat has been damaged.

If you are going to all that trouble to remove existing rust, then its well worth finishing the job off properly, so that you do not have to repeat the process next year!