Hi there,

Our cast iron chiminea has developed a tiny bit of rust where the
water has got in through the cover over winter.

I was wondering if there is some sort of paint or treatment I could
apply to stop it rusting quite as quickly whilst still being able to
resist the heat?

Thanks

On Apr 18, 10:14*pm, VAG_dude wrote:

I was wondering if there is some sort of paint or treatment I could
apply to stop it rusting quite as quickly whilst still being able to
resist the heat?

Blacklead grate polish. Zebo brand, lurid black and yellow tubes.
It's just graphite in oil, but it's heatproof and is the standard tidy-
up for cast iron hearths.

Every few years it goes out of business and becomes hard to find, so
try either really old hardware shops, eBay, or woodstove specialists.

It's not rustproof, but it will make your chiminea look better before
a barbecue. Really the best rustproofing for cast iron is just that
it's made out of cast iron rather than mild steel. Unlike steel, the
rust on cast iron tends to isolate the iron beneath from rusting
further.

On Apr 19, 10:36*am, Andy Dingley wrote:
On Apr 18, 10:14*pm, VAG_dude wrote:

I was wondering if there is some sort of paint or treatment I could
apply to stop it rusting quite as quickly whilst still being able to
resist the heat?

Blacklead grate polish. Zebo brand, lurid black and yellow tubes.
It's just graphite in oil, but it's heatproof and is the standard tidy-
up for cast iron hearths.

Every few years it goes out of business and becomes hard to find, so
try either really old hardware shops, eBay, or woodstove specialists.

It's not rustproof, but it will make your chiminea look better before
a barbecue. Really the best rustproofing for cast iron is just that
it's made out of cast iron rather than mild steel. Unlike steel, the
rust on cast iron tends to isolate the iron beneath from rusting
further.

Thank you.

Can the rust be removed with phosphoric acid?

On Apr 19, 3:50*pm, VAG_dude wrote:
On Apr 19, 10:36*am, Andy Dingley wrote:



On Apr 18, 10:14*pm, VAG_dude wrote:

I was wondering if there is some sort of paint or treatment I could
apply to stop it rusting quite as quickly whilst still being able to
resist the heat?

Blacklead grate polish. Zebo brand, lurid black and yellow tubes.
It's just graphite in oil, but it's heatproof and is the standard tidy-
up for cast iron hearths.

Every few years it goes out of business and becomes hard to find, so
try either really old hardware shops, eBay, or woodstove specialists.

It's not rustproof, but it will make your chiminea look better before
a barbecue. Really the best rustproofing for cast iron is just that
it's made out of cast iron rather than mild steel. Unlike steel, the
rust on cast iron tends to isolate the iron beneath from rusting
further.

Thank you.

Can the rust be removed with phosphoric acid?

Phospohroci turns rust into magnetite IIRC, which is just less
unstable than rust. Its not a good base to paint on, you should still
remove whatever rust you can.

For the chiminea, stove paint. It needs to get hot to cure it.


NT

On Apr 19, 4:00*pm, Tabby wrote:
On Apr 19, 3:50*pm, VAG_dude wrote:









On Apr 19, 10:36*am, Andy Dingley wrote:

On Apr 18, 10:14*pm, VAG_dude wrote:

I was wondering if there is some sort of paint or treatment I could
apply to stop it rusting quite as quickly whilst still being able to
resist the heat?

Blacklead grate polish. Zebo brand, lurid black and yellow tubes.
It's just graphite in oil, but it's heatproof and is the standard tidy-
up for cast iron hearths.

Every few years it goes out of business and becomes hard to find, so
try either really old hardware shops, eBay, or woodstove specialists.

It's not rustproof, but it will make your chiminea look better before
a barbecue. Really the best rustproofing for cast iron is just that
it's made out of cast iron rather than mild steel. Unlike steel, the
rust on cast iron tends to isolate the iron beneath from rusting
further.

Thank you.

Can the rust be removed with phosphoric acid?

Phospohroci turns rust into magnetite IIRC, which is just less
unstable than rust. Its not a good base to paint on, you should still
remove whatever rust you can.

Thanks, so what shall I use to remove it?


For the chiminea, stove paint. It needs to get hot to cure it.

Will this stuff do?

http://tinyurl.com/4xa5sn4



NT

Thanks

On Wed, 20 Apr 2011 14:57:12 -0700 (PDT), VAG_dude
wrote:

On Apr 19, 4:00*pm, Tabby wrote:
On Apr 19, 3:50*pm, VAG_dude wrote:









On Apr 19, 10:36*am, Andy Dingley wrote:

On Apr 18, 10:14*pm, VAG_dude wrote:

I was wondering if there is some sort of paint or treatment I could
apply to stop it rusting quite as quickly whilst still being able to
resist the heat?

Blacklead grate polish. Zebo brand, lurid black and yellow tubes.
It's just graphite in oil, but it's heatproof and is the standard tidy-
up for cast iron hearths.

Every few years it goes out of business and becomes hard to find, so
try either really old hardware shops, eBay, or woodstove specialists.

It's not rustproof, but it will make your chiminea look better before
a barbecue. Really the best rustproofing for cast iron is just that
it's made out of cast iron rather than mild steel. Unlike steel, the
rust on cast iron tends to isolate the iron beneath from rusting
further.

Thank you.

Can the rust be removed with phosphoric acid?

Phospohroci turns rust into magnetite IIRC, which is just less
unstable than rust. Its not a good base to paint on, you should still
remove whatever rust you can.

Thanks, so what shall I use to remove it?

A wire brush.

--
Frank Erskine

In article ,
Frank Erskine wrote:
On Wed, 20 Apr 2011 14:57:12 -0700 (PDT), VAG_dude
wrote:

On Apr 19, 4:00*pm, Tabby wrote:
On Apr 19, 3:50*pm, VAG_dude wrote:

Can the rust be removed with phosphoric acid?

Phospohroci turns rust into magnetite IIRC, which is just less
unstable than rust. Its not a good base to paint on, you should still
remove whatever rust you can.

Thanks, so what shall I use to remove it?

A wire brush.

Pint of petrol and a match.

Nick
--
Serendipity: http://www.leverton.org/blosxom (last update 29th March 2010)
"The Internet, a sort of ersatz counterfeit of real life"
-- Janet Street-Porter, BBC2, 19th March 1996

On Apr 20, 11:09*pm, Frank Erskine
wrote:
On Wed, 20 Apr 2011 14:57:12 -0700 (PDT), VAG_dude









wrote:
On Apr 19, 4:00*pm, Tabby wrote:
On Apr 19, 3:50*pm, VAG_dude wrote:

On Apr 19, 10:36*am, Andy Dingley wrote:

On Apr 18, 10:14*pm, VAG_dude wrote:

I was wondering if there is some sort of paint or treatment I could
apply to stop it rusting quite as quickly whilst still being able to
resist the heat?

Blacklead grate polish. Zebo brand, lurid black and yellow tubes.
It's just graphite in oil, but it's heatproof and is the standard tidy-
up for cast iron hearths.

Every few years it goes out of business and becomes hard to find, so
try either really old hardware shops, eBay, or woodstove specialists.

It's not rustproof, but it will make your chiminea look better before
a barbecue. Really the best rustproofing for cast iron is just that
it's made out of cast iron rather than mild steel. Unlike steel, the
rust on cast iron tends to isolate the iron beneath from rusting
further.

Thank you.

Can the rust be removed with phosphoric acid?

Phospohroci turns rust into magnetite IIRC, which is just less
unstable than rust. Its not a good base to paint on, you should still
remove whatever rust you can.

Thanks, so what shall I use to remove it?

A wire brush.

--
Frank Erskine

Thanks

snip

Just a quick question before I embark on this task...

Is there anything else I should do before painting apart from removing
the rust with a wire brush?

I was thinking it may need some sort of primer or undercoat? Maybe a
good going over with some wire wool?

Many thanks

On Jun 11, 11:10*pm, David wrote:

Is there anything else I should do before painting apart from removing
the rust with a wire brush?

You either knock the loose stuff off with a wire brush and press on
regardless, knowing that you'll knacker any surface paintwork by
lighting a fire in it.

Otherwise you go for electrolytic derusting and a achieve a perfect
finish, although goodness only knows why on such a device.

Anything else is just work for the sake of it.