Would this blacken soldering? I have some small brass parts soldered together. I would like to have all of them blackened. Thanks.

Best thing for darkening solder is a chemical called Novacan. It's designed for people that make stained glass windows and want to darken the solder in between the glass panes.

Harsh chemical removed the age finish of my faucet and drain. Will this help to restore?

It might, but not necessarily. It depends on whether the material of the faucet and drain are real brass, or only a veneer. If it isn't real brass, then using Brass Black might make things worse. If the material is real brass, then this can help. You may need to make multiple, light applications in order to get the finish to how you want it to look. Once you have achieved the finish you like, I would recommend using Renaissance Micro-Crystalline Wax Polish to help protect the finish. Best wishes for success with your project!

What kind of oil do you have to use to enhance the color?

I used gun oil, but any oil would work. Or even wax.

Will this work on zinc alloy?

No experience with zinc alloy unfortunately

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Birchwood Casey Brass Black Metal Finish, 3-Ounce

Birchwood Casey Brass Black Metal Finish, 3-Ounce

Product ID: 3113593

Details

Brand
Birchwood
Color
3 FL OZ BOTTLE
Finish Type
Brushed
Included Components
see
Item Form
Liquid
Item Volume
3 fluid ounces

⚡Fast-acting blackening in seconds

🧴Compact 3 oz easy-apply bottle

🛡️Durable, no dimensional change finish

€ 36.34

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Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Elevate your metalwork game with instant, flawless black finish!

INSTANT DARK ELEGANCE - Transforms brass, copper & bronze to rich black in moments—no waiting, no fuss.
EFFORTLESS APPLICATION - Smooth liquid formula glides on easily with no surface distortion—perfect for hobbyists & pros alike.
PRECISION MARKING POWER - Ideal for cartridge case ID and detailed engraving highlights—professional-grade clarity.
TRUSTED GUNSMITH STANDARD - Since 1948, Birchwood Casey delivers industry-leading quality for shooters and collectors.
VERSATILE ARTISTIC FINISH - Blackens plaques, sculptures, and metal crafts with a deep, customizable patina.

Birchwood Casey Brass Black Metal Finish is a fast-acting, easy-to-apply liquid solution designed to blacken or antique brass, copper, and bronze parts without altering dimensions. Perfect for gunsmiths, hobbyists, and artisans, it delivers a deep, durable black finish ideal for marking cartridge cases, enhancing engravings, and adding a professional touch to plaques and sculptures. Trusted since 1948, this 3-ounce bottle combines high-quality craftsmanship with versatile use, making it a must-have for precision metal finishing.

Specifications

ASIN	B0000C514O
Best Sellers Rank	#16,061 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #23 in Gunsmithing Tools
Brand Name	Birchwood Casey
Color	3 FL OZ BOTTLE
Container Type	Bottle
Customer Reviews	4.6 4.6 out of 5 stars (1,374)
Finish Type	Brushed
Global Trade Identification Number	00029057152258
Included Components	see descritption
Item Form	Liquid
Item Type Name	gun-cleaning-kits
Item Volume	3 fluid ounces
Item Weight	3.2 ounces
Manufacturer	Birchwood Casey
Model Name	Fast-Acting Brass Black Metal Finish To Blacken or Antique Brass, Copper
Model Number	BC-152
Part Number	BC-15225
Size	1 Count (Pack of 1)
UPC	029057152258
Unit Count	1 Count

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€ 36.34

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Imran F.

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