Antifoul

[Vardo]

Hi all.
I've posted before about my Enfield Z drive and the fact it's suffered a bit due to galvanic corrosion. My boat is out of the water for some repair and maintenance which includes a new coat of anti foul and repair to said sad looking z drive. It's all going very well...........until now.
I happen to know that both the fibre glass hull and the drive are coated with International 'Uno' anti foul. I've just been reading the service manual for the drive and it states very emphatically to NEVER use paints on the hull or drive unit which contain copper. According to the 'Uno' MSDS it contains copper oxide.

Should I remove all the existing anti foul? Is copper oxide the same as copper as far as galvanic action is concerned? Am I reading too much into all of this?

I was just about to order a batch of International 'Uno' for the job.

Many thanks in anticipation

Barry

 

[rafiki_]

The UNO is fine on the hull, but not on any metal parts.

 

[Vardo]

The UNO is fine on the hull, but not on any metal parts.

Thanks again rafiki. I had visions of having to scrape the whole lot off

 

[rafiki_]

You MUST take all the UNO off the outdrive. You should leave a half inch gap between the antifoul on the hull and the outdrive.

 

[Portofino]

This is ok for the drives Trilux33
http://marinestore.co.uk/International_Trilux_33_Antifoul___375_ml.html

 

[Vardo]

This is ok for the drives Trilux33
http://marinestore.co.uk/International_Trilux_33_Antifoul___375_ml.html

Thanks Portofino

 

[delab]

Please forgive my ignorance but why the gap?

You MUST take all the UNO off the outdrive. You should leave a half inch gap between the antifoul on the hull and the outdrive.

 

[gjgm]

Please forgive my ignorance but why the gap?

Otherwise you have a whole hull coat of copper connected right into your drive. The gap breaks that link.
As said elsewhere, Trilux is fine and works pretty well. Both the grey and cream/white look ok on the drives if you care.

 

[Vardo]

Another question...........
Can anyone recommend an anti foul stripper suitable for use on aluminium casings please? This drive unit is quite pitted in places and the coating (what's left of it) is proving a bu**er to get off completely.

 

[Scubadoo]

Another question...........
Can anyone recommend an anti foul stripper suitable for use on aluminium casings please? This drive unit is quite pitted in places and the coating (what's left of it) is proving a bu**er to get off completely.

Have you tried wet&dry method, I find it removes the old paint alot easier when wet than dry sanding.

 

[DAKA]

Another question...........
Can anyone recommend an anti foul stripper suitable for use on aluminium casings please? This drive unit is quite pitted in places and the coating (what's left of it) is proving a bu**er to get off completely.

Cruiser uno is very easy to remove, it is a soft antifoul that will jet wash off, no stripper needed.

 

[Vardo]

Thanks both, jet wash and wet n dry it is