Creating a Patina on Brass mods?

[PinoyBoy]

One of my mods is brass and I was wondering if it is safe to get a patina going on it? Has anyone done something similar to this? I've been looking at various mod picture threads, and the only patina I've seen are the dull brown looking ones.

I'm trying to find a way to get this greenish-blue patina similar to this:

 

[Dusif]

My granddad once told me how to make this...
Apparently you can do it by rubbing it with some acid (cant remember what type tho)...
The man used to be a blacksmith so he knows his metals but if its actually true or not i cannot say since he's an old man and has been known to tell a white lie or two... But to me it seems legit...


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[williebb123]

i know copper flashing you can use a fine sandpaper and wipe it down with vinegar and it will give it the blueish patina , i guess since its brass if all fails buff it back out to the shiny brass but what ever you do you will have to put several coats of clear coat on it to keep your hands from rubbing it off might want to do a utube search and see what comes up

 

[oldbikeguy]

One of my mods is brass and I was wondering if it is safe to get a patina going on it? Has anyone done something similar to this? I've been looking at various mod picture threads, and the only patina I've seen are the dull brown looking ones.

I'm trying to find a way to get this greenish-blue patina similar to this:

That looks like copper sulfate

 

[williebb123]

heres a vid i found but your not gonna get that blue you want you might have to get a copper mod if you like that blue petina

Jewelry Making: Non-Toxic Patina Methods for Brass Stampings, Part One - YouTube

 

[entropy1049]

For green/blue patina on brass: Spray the piece to be patina'd and suspend over a pool of 2 parts white vinegar, 1 1/2 parts non-detergent ammonia, and 1/2 part non-iodized salt. Cover (I use a large ziplock) and place in a warm and humid environment. After 24 hours or so, rinse with clean water, dry, and seal with carnuba wax or Tung oil. Easy Peasey.

 

[PinoyBoy]

Thanks for the replies guys!

I just realized that all of the methods I've seen and been given might get the insides and the threads oxidized, which I do not want. I'll keep the advices given here in mind. I'll try to create a makeshift plugs out of whatever.

Thanks again

PS: nice mod @Entropy1049. That's the exact look I've been looking for.

 

[Crash Moses]

For green/blue patina on brass: Spray the piece to be patina'd and suspend over a pool of 2 parts white vinegar, 1 1/2 parts non-detergent ammonia, and 1/2 part non-iodized salt. Cover (I use a large ziplock) and place in a warm and humid environment. After 24 hours or so, rinse with clean water, dry, and seal with carnuba wax or Tung oil. Easy Peasey.

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Spray it with what? And how long do you leave it suspended over the pool before covering it?

 

[entropy1049]

Sorry about the delayed reply. Just now noticed your question.

Spray with the solution you've mixed in the bowl. Place the large bag over the pool and suspended piece.

 

[jarreddizzle]

Or just get a copper mod and let it get yucky

 

[Richard75]

For green/blue patina on brass: Spray the piece to be patina'd and suspend over a pool of 2 parts white vinegar, 1 1/2 parts non-detergent ammonia, and 1/2 part non-iodized salt. Cover (I use a large ziplock) and place in a warm and humid environment. After 24 hours or so, rinse with clean water, dry, and seal with carnuba wax or Tung oil. Easy Peasey.

View attachment 249528

I'll chime in and say that there are rumors out there (mostly among gun enthusiasts, but I think it's a valid concern) that ammonia weakens brass and can contribute to cracks and breaks. The thought is that ammonia dissolves the copper in a brass alloy. Chemically, ammonia does dissolve copper, but it's still largely unknown how it treats brass. I just say better safe than sorry.

 

[ceejay]

For green/blue patina on brass: Spray the piece to be patina'd and suspend over a pool of 2 parts white vinegar, 1 1/2 parts non-detergent ammonia, and 1/2 part non-iodized salt. Cover (I use a large ziplock) and place in a warm and humid environment. After 24 hours or so, rinse with clean water, dry, and seal with carnuba wax or Tung oil. Easy Peasey.

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Looks nice but is the threading and inside tarnished too? I assume that would degrade performance

 

[StrappedKaos]

Patina Formulas for Brass, Bronze and Copper

 

[Apostlyte]

I want to know how often you reseal to maintain the patina, this is where I saw this first.

Sentinel-M16-Clone-Telescopic-Mech-Mod-Brass-Customized-with-Patina-Serial-6280

 

[blueGrassTubb]

What you need is a Facebook group dedicated to spreading different methods forming a patina on MODs.

Oh, lookie what I found!

https://www.facebook.com/groups/1400970210164174/

 

[classwife]

Moved to the Modding Forum - Cosmetic Mods from APV Discussion