Paint for cast iron gutters - Hammerite smooth?
 

I've recently replaced the one 6m length of PVC gutter bodge on the
house with cast iron to match everything else (a slightly tough job,
single handed; where are the off-spring when you need them?) The new
stuff was pre-painted and looks great, but it's reminded me how bad the
rest of the guttering looks (in good condition, but bad paint and with
leaking joints). The plan is to take it down in sections, wire brush,
paint, re-fit with new bolts and seals, and to adjust the brackets to
improve the falls. The question is what to paint it with.
My first thought was inside and outside with Hammerite smooth, but I've
read reviews saying that it flakes quickly and is a pain to apply ("not
as good as it used to be" is a common comment). Other suggestions are to
use bitumen paint inside and almost anything outside.
Any recommendations from people who have relevant experience?

Paint for cast iron gutters - Hammerite smooth?
 

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

Paint for cast iron gutters - Hammerite smooth?
 

On Monday, 25 February 2019 09:33:47 UTC, wrote:
I've recently replaced the one 6m length of PVC gutter bodge on the
house with cast iron to match everything else (a slightly tough job,
single handed; where are the off-spring when you need them?) The new
stuff was pre-painted and looks great, but it's reminded me how bad the
rest of the guttering looks (in good condition, but bad paint and with
leaking joints). The plan is to take it down in sections, wire brush,
paint, re-fit with new bolts and seals, and to adjust the brackets to
improve the falls. The question is what to paint it with.
My first thought was inside and outside with Hammerite smooth, but I've
read reviews saying that it flakes quickly and is a pain to apply ("not
as good as it used to be" is a common comment). Other suggestions are to
use bitumen paint inside and almost anything outside.
Any recommendations from people who have relevant experience?

I'm told hammerite is now no better than ordinary gloss paint. Dulux do metal paints but IMLE they're nothing great. Bitumen is relatively good at covering all sorts of sins & cheap, long as you like black.


NT

Paint for cast iron gutters - Hammerite smooth?
 

Wrote in message:
On Monday, 25 February 2019 09:33:47 UTC, wrote:
I've recently replaced the one 6m length of PVC gutter bodge on the
house with cast iron to match everything else (a slightly tough job,
single handed; where are the off-spring when you need them?) The new
stuff was pre-painted and looks great, but it's reminded me how bad the
rest of the guttering looks (in good condition, but bad paint and with
leaking joints). The plan is to take it down in sections, wire brush,
paint, re-fit with new bolts and seals, and to adjust the brackets to
improve the falls. The question is what to paint it with.
My first thought was inside and outside with Hammerite smooth, but I've
read reviews saying that it flakes quickly and is a pain to apply ("not
as good as it used to be" is a common comment). Other suggestions are to
use bitumen paint inside and almost anything outside.
Any recommendations from people who have relevant experience?

I'm told hammerite is now no better than ordinary gloss paint. Dulux do metal paints but IMLE they're nothing great. Bitumen is relatively good at covering all sorts of sins & cheap, long as you like black.

Matt black...
--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

Paint for cast iron gutters - Hammerite smooth?
 

On 25/02/2019 11:45, wrote:
On Monday, 25 February 2019 09:33:47 UTC, wrote:
I've recently replaced the one 6m length of PVC gutter bodge on the
house with cast iron to match everything else (a slightly tough job,
single handed; where are the off-spring when you need them?) The new
stuff was pre-painted and looks great, but it's reminded me how bad the
rest of the guttering looks (in good condition, but bad paint and with
leaking joints). The plan is to take it down in sections, wire brush,
paint, re-fit with new bolts and seals, and to adjust the brackets to
improve the falls. The question is what to paint it with.
My first thought was inside and outside with Hammerite smooth, but I've
read reviews saying that it flakes quickly and is a pain to apply ("not
as good as it used to be" is a common comment). Other suggestions are to
use bitumen paint inside and almost anything outside.
Any recommendations from people who have relevant experience?

I'm told hammerite is now no better than ordinary gloss paint. Dulux do metal paints but IMLE they're nothing great. Bitumen is relatively good at covering all sorts of sins & cheap, long as you like black.


NT



When I repaired some cast iron I used paint stripper, then wire wool,
get down to bare metal. Then a rattle spray can of primer followed by a
rattle spray can of white "industrial" paint from TS.

https://www.toolstation.com/industri...t-500ml/p98041
(they sell other colours)



--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

Paint for cast iron gutters - Hammerite smooth?
 

On 25/02/2019 11:23, Tricky Dicky wrote:
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.

I am pretty sure part of the advertising jingle used to be

™« Inside Smoothrite outside Hammerite
Iron old Iron ™«

I take it 'Smoothrite' is now called 'Hammerite smooth' or somesuch.

Most things with chemicals in them seem to follow the same path the
chemical proportion has been so reduced (to follow H&S guidelines) that
the product they are in is no longer so effective.

Paint for cast iron gutters - Hammerite smooth?
 

On 25/02/2019 11:23, Tricky Dicky wrote:
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


Smooth hammerite has always been a bit flakey - though I once had good
results baking a small piece in an oven.

The hammered finish seemed to stand up to anything, but some say it was
prone to pinholing.

I agree with the above - a good quality zinc primer will go a long way
to a good finish.

sorry - can't advise on modern metal paints - so much has changed and
strangely I've not had the need to paint exterior metal for a long while.

--
Email does not work

Paint for cast iron gutters - Hammerite smooth?
 

On Monday, 25 February 2019 09:33:47 UTC, wrote:
I've recently replaced the one 6m length of PVC gutter bodge on the
house with cast iron to match everything else (a slightly tough job,
single handed; where are the off-spring when you need them?) The new
stuff was pre-painted and looks great, but it's reminded me how bad the
rest of the guttering looks (in good condition, but bad paint and with
leaking joints). The plan is to take it down in sections, wire brush,
paint, re-fit with new bolts and seals, and to adjust the brackets to
improve the falls. The question is what to paint it with.
My first thought was inside and outside with Hammerite smooth, but I've
read reviews saying that it flakes quickly and is a pain to apply ("not
as good as it used to be" is a common comment). Other suggestions are to
use bitumen paint inside and almost anything outside.
Any recommendations from people who have relevant experience?

A while ago I needed to paint a metal framed A-sign for outdoor use. I used:

Zinsser All Coat Exterior Paint Black 1Ltr (Screwfix 8716G)

Was really nice to use - wash brushes in water. Quick drying.

Unfortunately, it is quite expensive and I don't really know how well it lasts in the longer term.

Paint for cast iron gutters - Hammerite smooth?
 

On 25/02/2019 11:23, Tricky Dicky wrote:
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


Lateral idea - what about a good car underseal - maybe something like
the Waxoyl range? Some people swore by giving that a coat of Waxoyl
liquid once every few years to keep it soft.

--
Email does not work

Paint for cast iron gutters - Hammerite smooth?
 

polygonum_on_google Wrote in message:
On Monday, 25 February 2019 09:33:47 UTC, wrote:
I've recently replaced the one 6m length of PVC gutter bodge on the
house with cast iron to match everything else (a slightly tough job,
single handed; where are the off-spring when you need them?) The new
stuff was pre-painted and looks great, but it's reminded me how bad the
rest of the guttering looks (in good condition, but bad paint and with
leaking joints). The plan is to take it down in sections, wire brush,
paint, re-fit with new bolts and seals, and to adjust the brackets to
improve the falls. The question is what to paint it with.
My first thought was inside and outside with Hammerite smooth, but I've
read reviews saying that it flakes quickly and is a pain to apply ("not
as good as it used to be" is a common comment). Other suggestions are to
use bitumen paint inside and almost anything outside.
Any recommendations from people who have relevant experience?

A while ago I needed to paint a metal framed A-sign for outdoor use. I used:

Zinsser All Coat Exterior Paint Black 1Ltr (Screwfix 8716G)

Was really nice to use - wash brushes in water. Quick drying.

Unfortunately, it is quite expensive and I don't really know how well it lasts in the longer term.


Worth knowing?
--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

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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This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"Tricky Dicky" wrote in message
...
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

Paint for cast iron gutters - Hammerite smooth?
 

On 25/02/2019 09:33, wrote:
I've recently replaced the one 6m length of PVC gutter bodge on the
house with cast iron to match everything else (a slightly tough job,
single handed; where are the off-spring when you need them?) The new
stuff was pre-painted and looks great, but it's reminded me how bad the
rest of the guttering looks (in good condition, but bad paint and with
leaking joints). The plan is to take it down in sections, wire brush,
paint, re-fit with new bolts and seals, and to adjust the brackets to
improve the falls. The question is what to paint it with.
My first thought was inside and outside with Hammerite smooth, but I've
read reviews saying that it flakes quickly and is a pain to apply ("not
as good as it used to be" is a common comment). Other suggestions are to
use bitumen paint inside and almost anything outside.
Any recommendations from people who have relevant experience?
Thanks for all the replies.
AFAIK the gutters are mechanically good (especially considering they're
80 years old) so I'll continue with the plan to take them all down,
paint and refit.
The "Zinsser All Coat" looks like the way to go.
I should get the appropriate tuit once the real Spring arrives and will
try to remember to report back.

Paint for cast iron gutters - Hammerite smooth?
 

On 25/02/2019 20:53, polygonum_on_google wrote:
On Monday, 25 February 2019 09:33:47 UTC, wrote:
I've recently replaced the one 6m length of PVC gutter bodge on the
house with cast iron to match everything else (a slightly tough job,
single handed; where are the off-spring when you need them?) The new
stuff was pre-painted and looks great, but it's reminded me how bad the
rest of the guttering looks (in good condition, but bad paint and with
leaking joints). The plan is to take it down in sections, wire brush,
paint, re-fit with new bolts and seals, and to adjust the brackets to
improve the falls. The question is what to paint it with.
My first thought was inside and outside with Hammerite smooth, but I've
read reviews saying that it flakes quickly and is a pain to apply ("not
as good as it used to be" is a common comment). Other suggestions are to
use bitumen paint inside and almost anything outside.
Any recommendations from people who have relevant experience?

A while ago I needed to paint a metal framed A-sign for outdoor use. I used:

Zinsser All Coat Exterior Paint Black 1Ltr (Screwfix 8716G)

Was really nice to use - wash brushes in water. Quick drying.

Unfortunately, it is quite expensive and I don't really know how well it lasts in the longer term.

Thanks. It gets good reviews.

Paint for cast iron gutters - Hammerite smooth?
 

On Mon, 25 Feb 2019 13:29:49 +0000 (GMT+00:00), Jim K.. wrote:

Bitumen is relatively good at covering all sorts of sins & cheap, long
as you like black.

Matt black...

Does bitumen paint ever truely dry/set? Inside a gutter you don't
want anything "sticky" to collect the general atmospheric fall out,
dust, grist from slates/tiles, leaves, twigs etc.

Painted our cast iron gutters with Hammerite a good few years back.
Still look good (from ground level). It's fussy stuff, which is why I
think many people have trouble with it.

If you miss the fairly narrow (4 or 6? hr) recoat time you need need
to wait the two weeks. You just need to splap it on and not brush it
out too much. The inevitable tiny bubbles in a thin coat will tend to
remain and form pin holes in the coating. Bubbles aren't quite such a
problem with a thicker, less brushed out coat they rise and surface
tension pops 'em before the paint has cured too much within limits.
But the second coat within the recoat time is fairly critical to
filling any bubble pin holes that are present.

--
Cheers
Dave.

Paint for cast iron gutters - Hammerite smooth?
 

On Tuesday, 26 February 2019 09:32:34 UTC, Dave Liquorice wrote:
On Mon, 25 Feb 2019 13:29:49 +0000 (GMT+00:00), Jim K.. wrote:
nt

Bitumen is relatively good at covering all sorts of sins & cheap, long
as you like black.

Matt black...

Does bitumen paint ever truely dry/set? Inside a gutter you don't
want anything "sticky" to collect the general atmospheric fall out,
dust, grist from slates/tiles, leaves, twigs etc.

yes, a couple or 3 days in winter. Then over further days it gets harder. Very durable stuff.


NT