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Eastie
2nd December 2003, 04:37 PM
I was thinking the other night whilst flipping through the polisher’s handbook (a truly great book Neil http://www.ubeaut.biz/thumbupwink.gif) that it would be useful to have a section on restoring/aging brass hardware, tools, etc. Stuff like removing rust, japanning, aging shiny brass hardware, dulling shiny brass hardware, etc, etc would be very useful, but then again it is “a polishers handbook” and not “a polishers and restorers handbook”. I guess other books already cover it?

That reminds me, anyone know how to make dull brass shiny without using a solid abrasive like steel wool?

Best wishes,
Mark

silentC
2nd December 2003, 04:47 PM
Brasso!!

ozwinner
2nd December 2003, 04:51 PM
Or Silvo for silver.
Goldo for.......nah forget it
Witto for ya wit
:D

Eastie
2nd December 2003, 04:55 PM
Ok Ok - hold the firing squad :D
The stuff I'm trying to get 'clean' is very detailed and I thought brasso would end up caking in the tight cracks = no good. I was hoping there was something a little tihinner (someone is going to suggest thinning down brasso, I can feel it). If I can't get it cleaned up then I'll have to tarnish the hinges - oh the dilema :D

ozwinner
2nd December 2003, 05:34 PM
Use Brasso with a toothbrush, works wonders.
Cheers, Al :)

AlexS
2nd December 2003, 06:37 PM
What ozwinner said. Just ask any old solja.

Shane Watson
2nd December 2003, 06:45 PM
Tomato sauce works well. just sit the brass in the sauce and the acid do its thing and then clean it off. Same as COKE. I actually havn't used brasso in all the years I have been dealing with antique and old furniture so gather what you will from that comment ;)

Baz
2nd December 2003, 08:12 PM
Eastie, try some Tarnoff, available at your local supermarket.
Cheers
Barry

soundman
2nd December 2003, 10:56 PM
Eastie go to your WHS sources & look up acids that can kill you by sucking calcium from you blood stream.
Thats the best brass cleaner there is (sorry can't remember the name). QLD WHS consider it worth a a fact sheet of ots own.
A mate of mine uses it to clean brass cups he sells to magicians (cups & balls!!!)
Just don't get it on your skin.

Garry1953
3rd December 2003, 09:02 AM
Originally posted by soundman
(sorry can't remember the name).

hydro-flouric acid.... its rather nasty stuff to play with. Take extreme care if you intend to use it.

Eastie
3rd December 2003, 09:16 AM
Thanks all for the ideas. Shane, that's what I was looking for - I just couldn't remember if it dulled or polished the brass.

Soundman, its called HF - hydrofluoric acid. Nasty stuff. I once had to oversee a concentrated HF operation and it was interesting to say the least. It came in 44 gal plastic chemical drums lined internaly with a composite glass membrane. It could be stored on site for 60 days before use or it had to be returned as the risk of acid breakthrough and subsequent health/environment impact was high. We had one incident in which a chemist spilt 200ml - less than 1 cup. The fire brigade responded four vehicles including a hazmat unit - upon arrival they sat at the evacuation area until the local emergency control team has contained the spill and confirmed the quanltity. Their plan for a HF spill in this facility was to oversee the incident from as far away as possible and rely on the expertise of the locals.

Regards
Eastie :D

gatiep
3rd December 2003, 01:52 PM
Eastie

The Tomato Sauce that Shane suggested contains citric acid and that is what is doing it. Get some citric acid from the supermarket and make up a solution, it works well.
To take the real green ( virdigris ) tarnish off brass/ copper, mix citric acid powder with soap powder equal quantities, then moisten with water into a paste and gently rub the object, rinse and dry....beeeeaaaauuuuuttttiiiiffffuuuuullllll

Regards
Joe

seriph1
24th January 2004, 09:15 AM
I want to PUT verdigris INTO brass and copper

anyone know the formula for this?

Thanks

Harry II
24th January 2004, 09:37 AM
To make copper or brass go green, you mix ordinary table salt with vinegar into a sought of gritty paste and apply it to said metal.

Soak a rag or anything absorbent with amonia (sold in supermarkets as "Cloudy Amonia") and place it with the coated metal in a sealed container, making sure the amonia soaked rag doesn't actually touch the metal.

If you can't place all into a sealed container then get the soaked rag as close (without touching) to the coated metal and drape something over it. What your aiming to do is sufficate the metal in Amonia fumes.

Within 6-12 hours the metal will be greeny blue.

seriph1
24th January 2004, 09:58 AM
you go into my official "legends" list

thanks heaps harry!


New Yankee Workshop just finished, so I am off to try it now

Barry_White
13th February 2004, 10:22 PM
Might be a bit late on this post but have you tried Coca Cola.