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Brian Gaff Brian Gaff is offline
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Default Paint for cast iron gutters - Hammerite smooth?

I seem to recall that some of the ingredients that used to be in it have had
to be replaced by others for health reasons, and I strongly suspect this is
why its now not what it was.

Who remembers red oxide being replaced by Engenamel?


Yes on cast iron. make sure its good before taking it down. also due to its
weight the hardware that holds it up and what its screwed into need also to
be in good condition. I have to say that my gutter is now all plastic. OK
you say, the company who removed it thought it was a good little earner for
the scrap, but not really when they were taking it down it was immediately
obvious that parts of it were paper thin and whole bits could simply be
broken off with bare hands. Tin worm and age and stress had taken its toll.
It looked good but was forever leaking at joints which was why I had it
done.
Brian

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I would be very wary of taking it down if badly corroded you may find
yourself with a pile of bits. If it is still reasonably sound and not full
of holes with pieces breaking off, I would paint it in situ, bitumen paint
inside wire brushing treating the outside with a rust converting paint
before applying a decent zinc based primer after which a decent undercoat
and gloss to finish off. When Hammerite was still good I recall the smooth
version was not recommended for exterior use, I don't know if that applies
to the current version. Generally Hammerite in my opinion is not what it
used to be.

Richard