Product Dimensions | 2.54 x 2.54 x 2.54 cm; 90.72 g |
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Item model number | BC-152 |
Is discontinued by manufacturer | No |
Colour | Multi |
Size | 3 oz |
Style | Birchwood Casey |
Team | birchwood casey |
Length | 7.5 inches |
Weight | 91 g |
Width | 3.75 inches |
Material | Blend |
Number of Items | 1 |
Power Source | AC/DC |
Included Components | BRASS BLACK TOUCH-UP / 3 OZ |
Batteries Included? | No |
Brand | BIRCHWOOD CASEY |
Item Weight | 90.7 g |
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Birchwood Casey Brass Black Touch-Up, 3-Ounce
Purchase options and add-ons
- Fast-acting liquid
- Birchwood Casey Brass Black Touch-Up, 3-Ounce
- Fast-acting liquid
- Excellent for blackening name plates, plaques, castings, sculptures and other home, workshop and hobby uses
Product information
Technical Details
Additional Information
ASIN | B0000C514O |
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Customer Reviews |
4.6 out of 5 stars |
鶹 Rank |
|
Date First Available | Nov. 3 2010 |
Manufacturer | GSM Outdoors |
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Featured items to consider
Product description
Brass Black Metal Touch-Up 3 oz.- Fast-acting liquid used by gunsmiths and industry to blacken or antique brass, copper and bronze parts. Easy to apply with no dimensional change. Often used to mark cartridge cases to identify loads. Excellent for blackening name plates, plaques, castings, sculptures and other home, workshop and hobby uses. Color varies depending on alloy and can be highlighted if desired.
From the manufacturer


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PRESTO GUN BLUE TOUCH-UP PEN
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ALUMINUM BLACK TOUCH-UP PEN
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SUPER BLACK TOUCH-UP PEN (GLOSS BLACK)
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SUPER BRIGHT PEN KIT (GREEN, RED & WHITE)
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BRASS BLACK TOUCH-UP 3 OUNCE
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BRASS BLACK TOUCH-UP 32 OUNCE
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Add to Cart
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Add to Cart
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Add to Cart
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Add to Cart
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Add to Cart
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Customer Reviews |
4.4 out of 5 stars 775
|
3.9 out of 5 stars 1,924
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3.8 out of 5 stars 916
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3.6 out of 5 stars 1,925
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4.6 out of 5 stars 1,244
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4.3 out of 5 stars 34
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Penetrates hard steel instantly and gives a durable blue-black finish that won't rub off | Aluminum black is now in an easy to use pen applicator. Aluminum black restores scratched and marred areas quickly | ouch-Up pens will help you to completely renew and restore deep scratches or worn areas | These pens provide a fast and easy way to touch-up chipped, dull or scratched sights | Fast-acting liquid used by gunsmiths and industry to blacken or antique brass, copper and bronze parts | Fast-acting liquid used by gunsmiths and industry to blacken or antique brass, copper and bronze parts |
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PERMA BLUE LIQUID GUN BLUE 3 OUNCE
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PERMA BLUE PASTE GUN BLUE 2 OUNCE TUBE
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SPANISH PERMA BLUE LIQUID GUN BLUE 90 ML
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PRESTO MAG LIQUID GUN BLUE 3 OUNCE
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PERMA BLUE LIQUID GUN BLUE FINISHING KIT
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ALUMINUM BLACK TOUCH-UP
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Add to Cart
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Add to Cart
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Add to Cart
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Add to Cart
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Add to Cart
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Add to Cart
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Customer Reviews |
4.4 out of 5 stars 1,751
|
4.4 out of 5 stars 1,099
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4.4 out of 5 stars 993
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4.6 out of 5 stars 787
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4.6 out of 5 stars 3,781
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4.3 out of 5 stars 3,674
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It will give a non-streaky, even blue-black finish to steel (except stainless) | Perma blue paste gun blue is slower to darken than liquid gun blue, but will build up a denser finish | It will give a non-streaky, even blue-black finish to steel (except stainless) | Presto mag gun blue is a cold blue formulation that works on all steel (except stainless steel) | Easy to use, all-inclusive kits are the proven way to touch up or completely reblue most guns | Restores scratched and marred areas quickly. Fast-acting liquid is easy to apply with no dimensional change |

Customer reviews
Customers say
Customers like the functionality and quality of the product. They mention it works well, is effective, and easy to use.
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Customers are satisfied with the functionality of the product. They mention it works well, is effective, and easy to use.
"Works after several applications." Read more
"...Birchwood Casey. This product worked like a charm!..." Read more
"This works the way it should. Only reason I gave it a 4 not a 5 is because I think it should come with a brush or something for application...." Read more
"Works good ,came fast ,high priced" Read more
Reviews with images

I sanded over 30 years of black off my vintage brass door knocker, then wanted it black again!
Top reviews from Canada
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- Reviewed in Canada on April 27, 2025Verified PurchaseWorks after several applications.
- Reviewed in Canada on April 17, 2019Verified PurchaseI compare my need for this product to someone giving themselves a bad hair colour job, where after they've made the mistake and have horrible yellow hair, they are trying desperately to find a way to bring it back to its original colour!
In my case, I have an old brass door knocker that can be dated loosely between 1945-1975 (LOL). I'm in the process of updating my front entrance door and thought, hey after 25 years maybe there's something nice under this black stuff. I send a picture to my brother and he said, it could be brass.
Without thinking, I took my SOS pad and in seconds was able to remove the black to reveal brass thinking I found treasure (and sent him the photo of it partially sanded and then... about 30 seconds later I was like... "OMG, now I've done it! I really want it blackened! What am I going to do?!" So to the internet and 鶹 I went so fix my mess. I figured someone must have discovered a way to do it by now and someone did! Birchwood Casey.
This product worked like a charm! I actual found it is more commonly used on guns (gasp), but that it can work on any brass metal object.
Here's how I did it.
- I first wiped down the knocker with acetone to remove any residue.
- I then soaked cotton pads, wiped the surface with Brass Black let sit for about 2 minutes and continued to applied several applications, while letting in dry in between each one.
- I let the whole thing dry for about 5 more minutes then washed under water. A tiny bit of black came off but nothing notable.
- I held it up on my door to take a photo and show you how well it worked!
Take a look at the photos! It's actually funny how I have a picture of each stage as I was so excited, full or regret, then excited again. If you have questions, be sure to ask a question vs. comment as 鶹 doesn't send me messages when comments are left.
5.0 out of 5 starsI compare my need for this product to someone giving themselves a bad hair colour job, where after they've made the mistake and have horrible yellow hair, they are trying desperately to find a way to bring it back to its original colour!I sanded over 30 years of black off my vintage brass door knocker, then wanted it black again!
Reviewed in Canada on April 17, 2019
In my case, I have an old brass door knocker that can be dated loosely between 1945-1975 (LOL). I'm in the process of updating my front entrance door and thought, hey after 25 years maybe there's something nice under this black stuff. I send a picture to my brother and he said, it could be brass.
Without thinking, I took my SOS pad and in seconds was able to remove the black to reveal brass thinking I found treasure (and sent him the photo of it partially sanded and then... about 30 seconds later I was like... "OMG, now I've done it! I really want it blackened! What am I going to do?!" So to the internet and 鶹 I went so fix my mess. I figured someone must have discovered a way to do it by now and someone did! Birchwood Casey.
This product worked like a charm! I actual found it is more commonly used on guns (gasp), but that it can work on any brass metal object.
Here's how I did it.
- I first wiped down the knocker with acetone to remove any residue.
- I then soaked cotton pads, wiped the surface with Brass Black let sit for about 2 minutes and continued to applied several applications, while letting in dry in between each one.
- I let the whole thing dry for about 5 more minutes then washed under water. A tiny bit of black came off but nothing notable.
- I held it up on my door to take a photo and show you how well it worked!
Take a look at the photos! It's actually funny how I have a picture of each stage as I was so excited, full or regret, then excited again. If you have questions, be sure to ask a question vs. comment as 鶹 doesn't send me messages when comments are left.
Images in this review
- Reviewed in Canada on July 16, 2023Verified PurchaseI use brass black for my plates that I engrave. I like how it will not affect the rest of the brass plate when i apply it . I purchased 2 more bottles. Very pleased
I use brass black for my plates that I engrave. I like how it will not affect the rest of the brass plate when i apply it . I purchased 2 more bottles. Very pleased
Images in this review
- Reviewed in Canada on April 5, 2022Verified PurchaseThis works the way it should. Only reason I gave it a 4 not a 5 is because I think it should come with a brush or something for application. But that’s really nitpicking.
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Reviewed in Canada on November 6, 2023Verified PurchaseProduit efficace et très facile à utiliser pour noircir des pièces en bronze. Se protéger pour éviter les taches.
- Reviewed in Canada on July 6, 2020Verified PurchaseI thought for sure it wasn’t going to work after the first coat, but believe me - it does work. Follow the instructions, and be prepared to do several applications. And be diligent with your prep work, because any oxidation spots that you leave on the brass will stand out (also dark, but they look different).
- Reviewed in Canada on October 20, 2020Verified PurchaseWorks good ,came fast ,high priced
- Reviewed in Canada on May 3, 2019Verified PurchaseGood quality and fast shipping
Top reviews from other countries
- 鶹 CustomerReviewed in India on November 11, 2024
5.0 out of 5 stars Extremely good
Verified PurchaseHave used on clean brass. Gives good pitch black if the surface is cleaned nicely. After some months it was not giving good black. But patches. Especially in monsoon so moisture and dust if avoided, it works great
- Michael W. ThiesReviewed in the United States on January 29, 2023
4.0 out of 5 stars Works -- Follow Instructions AND Tailor to Specific Application -- It's An "Artist's Tool"
Verified PurchaseThe media could not be loaded.
I used this to chemically blacken the head of soft "yellow" brass wood screws used in a 1946 Baldwin grand Piano. I believe these screws were all originally blackened in a similar manner with all but one being "polished away" either by mere ordinary use or "mistake" as "brass should be "shiny."
See video for clues to the mystery and see if you agree. The only audio is the piano itself.
Sorry that the video ends before the top is installed but I'm waiting on some new rubber "mushrooms" as the old ones are so hard and deformed that they actually deformed the wood (and finish) below--fortunately I could save and "camouflage" the finish damage but of course the wood damage is permanent.
Some things I discovered that won't be apparent from the video:
1) Timing is critical. About one minute as per label instructions seems right.
2) Additional "coats" only help to a point. About three seems the max before you hit a point where it seems nothing really changes--some parts "more black" but others "less black." Again--this seems to be very much an "art."
3) YOU CANNOT DIP!! It simply won't work! And DEFINITELY don't dip in the full bottle! You would contaminate the entire EXPENSIVE thing! If you MUST attempt to dip then pour a small amount into an appropriately shaped small container!
4) Too much of the product just eats away at the coating you've put on.
5) Too little of the product and nothing really happens.
6) The rim around the screw head is VERY, VERY difficult to cover fully.
7) Be CERTAIN to use steel wood in the preparation stage!
8) The instructions are excellent and should be generally followed step=by-step and sort of to the letter. That said, while rinsing is absolutely mandatory, blotting dry with microfiber is fine for something that doesn't need "buffing" for any sort of appearance when you just want it to "disappear" to begin with...
9) While I have every reason to suspect that this piano left the factory with screw heads "finished" in much this manner perhaps using the exact same sort of chemical formulation know that as produced it is highly fugitive in that you can even "polish" it away with your fingers. This "problem" can be "fixed" lets say by using a couple very light coats of gloss spray lacquer. Some but not all brass on this piano (think hinges) were originally lacquered--very nicely--nicely enough that I just refinished an excellent existing lacquer finish on brass during the restoration--it never saw any "brass polish." The screws used however had never I'm sure been lacquered. Baldwin was sort of the "Chevrolet" maker of US Pianos compared to a fancy name that likely would have gone the extra mile let's say to lacquer those screw heads...but even then it could be polished away...