I have several door handles .. and interior side is OK ... but exterior
has dulled badly.
https://flic.kr/p/27WZ4dC

These are presumably brass (can't be 100% certain) at least look & feel
like.

It will take some effort to polish back up ..... are there any good
finishes that will protect them.
I remember doing this on a previous house - bought spray on clear cote
lacquer - didn't last 1 winter.

On 11/07/18 18:13, rick wrote:
I have several door handles .. and interior side is OK ... but exterior
has dulled badly.
https://flic.kr/p/27WZ4dC

These are presumably brass (can't be 100% certain) at least look & feel
like.

It will take some effort to polish back up ..... are there any good
finishes that will protect them.
I remember doing this on a previous house - bought spray on clear cote
lacquer - didn't last 1 winter.
Speaking from the POV of guitar parts and brass instruments, the problem
is that oxidisation of the brass begins from the moment you've finished
cleaning so the finish is being attacked from behind as well as on top.
If you really want immaculate brassware I'm afraid you've got to polish
it regularly. Ask the caretaker at No.10

Nick

On Wednesday, 11 July 2018 18:57:38 UTC+1, Nick Odell wrote:
On 11/07/18 18:13, rick wrote:
I have several door handles .. and interior side is OK ... but exterior
has dulled badly.
https://flic.kr/p/27WZ4dC

These are presumably brass (can't be 100% certain) at least look & feel
like.

It will take some effort to polish back up ..... are there any good
finishes that will protect them.
I remember doing this on a previous house - bought spray on clear cote
lacquer - didn't last 1 winter.
Speaking from the POV of guitar parts and brass instruments, the problem
is that oxidisation of the brass begins from the moment you've finished
cleaning so the finish is being attacked from behind as well as on top.
If you really want immaculate brassware I'm afraid you've got to polish
it regularly. Ask the caretaker at No.10

Nick

or lacquer it


NT

On Wed, 11 Jul 2018 18:13:00 +0100, rick wrote:

I have several door handles .. and interior side is OK ... but exterior
has dulled badly.
https://flic.kr/p/27WZ4dC

These are presumably brass (can't be 100% certain) at least look & feel
like.

It will take some effort to polish back up ..... are there any good
finishes that will protect them.
I remember doing this on a previous house - bought spray on clear cote
lacquer - didn't last 1 winter.

I spent ages on some brass and it still wasn't that good. This stuff
works!

https://www.rustins.ltd/rustins/our-...r-metal/brass-
restorer



--
My posts are my copyright and if @diy_forums or Home Owners' Hub
wish to copy them they can pay me £1 a message.
Use the BIG mirror service in the UK: http://www.mirrorservice.org
*lightning surge protection* - a w_tom conductor

Yes or use an etch and plate system of some kind so the outer finish is not
a type which gets oxidised. It can then, however look a trifle artificial,
Kind of blinged up.
Brian

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

Blind user, so no pictures please
Note this Signature is meaningless.!
"Nick Odell" wrote in message
news
On 11/07/18 18:13, rick wrote:
I have several door handles .. and interior side is OK ... but exterior
has dulled badly.
https://flic.kr/p/27WZ4dC

These are presumably brass (can't be 100% certain) at least look & feel
like.

It will take some effort to polish back up ..... are there any good
finishes that will protect them.
I remember doing this on a previous house - bought spray on clear cote
lacquer - didn't last 1 winter.
Speaking from the POV of guitar parts and brass instruments, the problem
is that oxidisation of the brass begins from the moment you've finished
cleaning so the finish is being attacked from behind as well as on top. If
you really want immaculate brassware I'm afraid you've got to polish it
regularly. Ask the caretaker at No.10

Nick

I think he just explained why this does not work well, ie once the air is
there the oxidisation starts, and any finish is not bound to the surface,
only the oxide. Normally one uses an etch primer and then a top coat if its
going to be painted, but on Brass if you want it to still look like brass
your options are limited. I guess you could make it passivated, ie plated,
but it seldom retains the brass look, tending toward a bit patchy rainbow
coloured brassy look. You could talk to a local plating company and see what
they say, but brass if you want it to look like brass has to be just
polished at least once a week. It eventually ends up green otherwise!
Brian

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

Blind user, so no pictures please
Note this Signature is meaningless.!
wrote in message
...
On Wednesday, 11 July 2018 18:57:38 UTC+1, Nick Odell wrote:
On 11/07/18 18:13, rick wrote:
I have several door handles .. and interior side is OK ... but exterior
has dulled badly.
https://flic.kr/p/27WZ4dC

These are presumably brass (can't be 100% certain) at least look & feel
like.

It will take some effort to polish back up ..... are there any good
finishes that will protect them.
I remember doing this on a previous house - bought spray on clear cote
lacquer - didn't last 1 winter.
Speaking from the POV of guitar parts and brass instruments, the problem
is that oxidisation of the brass begins from the moment you've finished
cleaning so the finish is being attacked from behind as well as on top.
If you really want immaculate brassware I'm afraid you've got to polish
it regularly. Ask the caretaker at No.10

Nick

or lacquer it


NT

On 11/07/2018 18:57, Nick Odell wrote:
On 11/07/18 18:13, rick wrote:
I have several door handles .. and interior side is OK ... but
exterior has dulled badly.
https://flic.kr/p/27WZ4dC

These are presumably brass (can't be 100% certain) at least look &
feel like.

It will take some effort to polish back up ..... are there any good
finishes that will protect them.
I remember doing this on a previous house - bought spray on clear cote
lacquer - didn't last 1 winter.
Speaking from the POV of guitar parts and brass instruments, the problem
is that oxidisation of the brass begins from the moment you've finished
cleaning so the finish is being attacked from behind as well as on top.
If you really want immaculate brassware I'm afraid you've got to polish
it regularly. Ask the caretaker at No.10

Nick

But what "finish" are you using on your stuff? Provided it is
sufficiently impermeable to oxygen, the rate of attack from "behind"
will be very small. The Victorians knew how to do it, you can still find
lacquered brass that has not corroded where the lacquer remains
unscratched or has not flaked off. The lacquer itself darkens because of
oxidation so the colour changes somewhat.

On Thursday, 12 July 2018 07:18:48 UTC+1, Brian Gaff wrote:
tabbypurr wrote in message
...
On Wednesday, 11 July 2018 18:57:38 UTC+1, Nick Odell wrote:
On 11/07/18 18:13, rick wrote:

I have several door handles .. and interior side is OK ... but exterior
has dulled badly.
https://flic.kr/p/27WZ4dC

These are presumably brass (can't be 100% certain) at least look & feel
like.

It will take some effort to polish back up ..... are there any good
finishes that will protect them.
I remember doing this on a previous house - bought spray on clear cote
lacquer - didn't last 1 winter.
Speaking from the POV of guitar parts and brass instruments, the problem
is that oxidisation of the brass begins from the moment you've finished
cleaning so the finish is being attacked from behind as well as on top.
If you really want immaculate brassware I'm afraid you've got to polish
it regularly. Ask the caretaker at No.10

Nick

or lacquer it


NT

I think he just explained why this does not work well, ie once the air is
there the oxidisation starts, and any finish is not bound to the surface,
only the oxide. Normally one uses an etch primer and then a top coat if its
going to be painted, but on Brass if you want it to still look like brass
your options are limited. I guess you could make it passivated, ie plated,
but it seldom retains the brass look, tending toward a bit patchy rainbow
coloured brassy look. You could talk to a local plating company and see what
they say, but brass if you want it to look like brass has to be just
polished at least once a week. It eventually ends up green otherwise!
Brian

thank you for confirming it works great, and has done for well over a century


NT

In article ,
newshound wrote:
But what "finish" are you using on your stuff? Provided it is
sufficiently impermeable to oxygen, the rate of attack from "behind"
will be very small. The Victorians knew how to do it, you can still find
lacquered brass that has not corroded where the lacquer remains
unscratched or has not flaked off. The lacquer itself darkens because of
oxidation so the colour changes somewhat.

While it's true that a factory applied lacquer seems to last much better
than anything I've tried as DIY, I've not known of any that lasts 100
years or so outdoors. ;-)

--
*Toilet stolen from police station. Cops have nothing to go on.

Dave Plowman London SW
To e-mail, change noise into sound.

On 11/07/2018 18:13, rick wrote:
I have several door handles .. and interior side is OK ... but exterior
has dulled badly.
https://flic.kr/p/27WZ4dC

These are presumably brass (can't be 100% certain) at least look & feel
like.

It will take some effort to polish back up ..... are there any good
finishes that will protect them.
I remember doing this on a previous house - bought spray on clear cote
lacquer - didn't last 1 winter.

anybody any suggestions ?