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 Sujet du message: Question to Bronze experts
MessagePosté: Dim 22 Mai 2016 04:07 

Inscription: Mar 5 Avr 2016 01:24
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So today I decided to clean my Skull Bronze with lemon and some baking powder and in the process managed to scratch the bezel of the watch with the cotton swab... seems to me that the texture of the baking powder scratches the watch if done too hard or too fast. Other than that, the patina was pretty much removed. But of course I was super bummed about the scratches so I decided to accelerate the patina again to hide the scratches... Did this by submerging the watch in some salt water for several minutes and then took it out to dry without wiping the salt water. A light patina developed fairly quickly and the light scratches were masked. Then I decided to reclean the watch exactly the same way I did earlier but this time around the watch didn't clean like the first time... A lot of dark marks remain on the watch and I'm confused as to why this second time around the patina/stains are still there. The bronze composition on this skull I can tell makes removing of patina a bit harder than other bronze watches I've handled. Other bronze watches I've handled the patina basically disappears as soon as it touches lemon, on this watch I actually have to scrub a bit. But after some scrubbing, these marks just won't come off... Anyone know what is going on here? Confused and sad...

Image


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 Sujet du message: Re: Question to Bronze experts
MessagePosté: Dim 22 Mai 2016 08:56 
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Hi ! Cool to see a new thread in this international section, thanks for that.
It seems you have the same problem Gudzz met few weeks ago.
Products you used aren't strong enough to remove this old patina.
You should try with the DIY that Gudzz have made.
Sure he'll answer here with a translated version you'll be able to test.

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BR126 Ltd Sport Héritage GMT & Flyback
WW2 Régulateur Officer
BR01-92 Ltd : Compass RoseGold & Carbon, Carbon Fiber, Burning Skull
BR01-92 Ceramic
BR01-94 WD, Pro Ti GD


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 Sujet du message: Re: Question to Bronze experts
MessagePosté: Dim 22 Mai 2016 10:36 
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Quoting Gudzz :

I just wanted to share my experience on cleaning Skull Bronze. I had never cleaned so far and it was a first captured in image.
This may be useful to another BRo.


To ask the context, my watch was a fairly pronounced patina made through vapor of hydrochloric acid and left to live well for several weeks.
Image


Initially, and for lack of what to do, I tried with white vinegar, the result was average, removed impurities, verdigris gone but many black marks.

Second attempt at pure lemon juice
Image

Cleaner but not perfect at all, so i started with the big solution
Image
a mix of bicarbonate of soda (baking soda) and pur lemon juice


The idea is this, create a paste to apply on your watch. To do this, take a little baking soda in a container and then add a little lemon juice, mix well by adjusting the amounts of the respective elements to obtain a paste made some more "granular" than toothpaste.

Just apply a little paste on your watch, the effervescent effect of sodium facilitate the removal of residues and lemon acid dissolve patina, gently rubbing a finger or toothbrush (which I did to go in the gaps). The first results should already be seen.
Opt for wallpapering!!
Hop! I covered dough in full by ensuring that the material also go on the lower edge of the watch and leave act 20-30mins.
Image


After this time, there is already the dough on the watch changed color to a more greenish tint.
Image


Rinsed large slightly warm water.
Image


Properly wiped all the shows with cotton (remember within holes on the horns)
Image


Here is the result: like at the beginning!
Image


If signs persist (which was my case) repeat the operation until a satisfactory result.

Forward now to a new patina

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BR126 Ltd Sport Héritage GMT & Flyback
WW2 Régulateur Officer
BR01-92 Ltd : Compass RoseGold & Carbon, Carbon Fiber, Burning Skull
BR01-92 Ceramic
BR01-94 WD, Pro Ti GD


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 Sujet du message: Re: Question to Bronze experts
MessagePosté: Dim 22 Mai 2016 12:48 
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And i repeat another technic confirmed by other member, use of ammonia with a clear water washing after using it

lecorse2b a écrit:
Pour info, et pour plus de rapidité, tu aurais pu aussi la nettoyer a l'ammoniaque car la patine réalisée à l'aide des vapeurs de cette dernière est tenace


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 Sujet du message: Re: Question to Bronze experts
MessagePosté: Dim 22 Mai 2016 14:33 

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Maverick a écrit:
Quoting Gudzz :
I just wanted to....



Wow thank you so much for the translation!!! I did try using baking soda in little amounts but like I said in my OP, I think the granular nature of the baking soda is scratching the watch ever so lightly.


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 Sujet du message: Re: Question to Bronze experts
MessagePosté: Dim 22 Mai 2016 14:45 
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Try with liquid ammonia ?

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BR126 Ltd Sport Héritage GMT & Flyback
WW2 Régulateur Officer
BR01-92 Ltd : Compass RoseGold & Carbon, Carbon Fiber, Burning Skull
BR01-92 Ceramic
BR01-94 WD, Pro Ti GD


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 Sujet du message: Question to Bronze experts
MessagePosté: Dim 22 Mai 2016 18:50 
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Maverick a écrit:
Try with liquid ammonia ?
+1 and after water washing

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 Sujet du message: Re: Question to Bronze experts
MessagePosté: Dim 22 Mai 2016 22:26 

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lecorse2b a écrit:
Maverick a écrit:
Try with liquid ammonia ?
+1 and after water washing


I'm worried that using a toothbrush night scratch the surface. Should I apply it using a cotton pad or submerge it in it for a few seconds?


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