Birchwood Casey Brass Black Metal Finish, 3-Ounce

Have 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

I 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 Amazon 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 Amazon doesn't send me messages when comments are left.

Works great for brass coins. Here’s my steps for use: Soak brass until completely black Wipe excess off with paper towel Hit high spots with 0000 Steel wool Hit high spots again with dremel felt polisher

Works after several applications.

have used this product for years and very pleased

I'm building a Hawkens flintlock rifle. The brass in the kit is just too shiny for my liking. I watched a video on building this kit, and he used this on his. I thought I'd give it a try, and am quite glad I did. I started by scuffing the brass lightly with a 320 grit sandpaper, then painted on the Brass Black. I let it sit for a couple of minutes until it dried, then rinsed it under cold water, then dried it with a paper towel. After that, I took a piece of ScotchBrite and soaked it, then lightly buffed the brass with the damp pad. That took a lot of the black off, but then I repeated the process for a second coat. After the second coat, I was pretty satisfied with the results. Oh yeah, it also takes very little. I pour just enough into the bottom of a plastic cup to get a q-tip wet. I don't think it would be a good idea to dip the q-tip back into the bottle once you've started painting the brass with it. It looks to me like it would contaminate the rest. That may not be so, but why risk it. It's an easy process, and I really like the results. I would recommend it to anyone trying to antique their brass hardware.