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Mark Borgerson Mark Borgerson is offline

Mark Borgerson is offline

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First recorded activity by BoatBanter: Jul 2006

Posts: 14

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Rust spots cleaning

In article ,
says...
I have use diluted muriatic acid on concrete and gel coat.
However, I do not know the result if you use it on emron finish. BTW is
this finish also known as DuPontT Imron® Polyurethane Enamel? The best
thing would be to experiment with diluted muriatic acid before using it.
The last time I have use diluted muriatic acid was to remove barnacles. The
timing was crucial. Soon as you are finish removing the rust or barnacles
you have to rinse the surface immediately with lots of water. Failing to
immediately rinse the surface with lots of water could deteriorate the
surface finish and fibreglass.

wrote in message
oups.com...
I used to store my boat near a RR trestle and every spring would have
to remove freckles from the deck caused by minute steel molecules. We
all used dilute muriatic acid very carefully.

On our last charter, the boat came equipped with a fiberglass
cleaner that contained oxalic acid. That acid does a good
job of dissolving iron oxide--by forming oxalate complexes,
I think. It worked wonders on the rust streaks around the
anchor stowage and windlass. The only remaining streaks were
in areas where it looked like someone had waxed over the
rust streaks.

Google "fiberglass cleaner oxalic acid" for more than
you wanted to know.

Mark Borgerson

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