Birchwood Casey Fast-Drying Fast-Acting Aluminum Black Metal Finish for Restoring Scratched and Marred Areas, Gun Cleaning, 3 Ounce Bulk Each

The Birchwood Casey Aluminum Black works well on the Beretta M9 Commercial frame. Due to their M9 Commercial coming with the wrong, slide, grips, hammer etc it was necessary to rebuild the gun and hand fit it. All the plastic parts lead to scratches that wouldn't otherwise be there if it came how it was supposed to. That being said Birchwood Casey stepped up and we got it done.

Works like a charm for covering up scratches and other blemishes on aluminum finishes like upper receivers. A small drop of this stuff goes a long way, and the small bottle size improves longevity. An absolute essential for people with metal airsoft guns or real guns with aluminum components. I've only used 1/10 of the bottle, and even that was worth the full price in my book. It's easy to store and use as well. I used this to cover up blemishes on several airsoft GBB pistols and to hide completely the ugly white text on the side of my umarex hk45ct. It was a fun project and remarkably easy to get done with this product.

Had some hairline scratches on the dark anodized aluminum hinge of my Apple Magic Keyboard (black/dark grey color) where the raw aluminum was showing through. Applied a very thin coat with a toothpick, wiped off after 20 seconds, repeat. Scratches completely gone, I mean invisible Io the naked eye. Excellent product! (Don’t forget to shake bottle before applying).

My issue is that I seem to have received a returned item when I paid for new. The seal on the bottle was compromised and there was hair under the cap. I suspect the first person used what he needed and returned the rest. I did peel off most of the Amazon label on the bottle since it was covering the instructions. Though it didn't work for my application, I tested it on a aluminum soda can and it does work. I can't fault the product for not working on something it wasn't designed for, so though I really couldn't give it five stars, less than four would be unfair. I was hoping it would work on the scratched lens cap shutter on a Sony RX100MIII. I took a chance, and it didn't work.

I’ll be honest. My expectations were extremely high on this product, and I somehow felt that was true when I hit purchase. I got it, slapped some on my gun with aluminum exposed, and felt a little let down from it not matching the surrounding blacks. So I kept using it a bit more and it definitely stacks the bluing affect if you don’t rub it off with abrasive cotton or paper towel. You have to dabble it and let it dry without blowing on it. If you’re looking to fill a precise gap made from a scratch, this stuff still can do it if you have the minimal patience it takes (~5 mins per 1/2”^2). For that reason, it blends well on other existing paint. Meaning no “ridges” are seen. Is the black not going to match? Probably. But you know what you probably aren’t going to do? Cerakote it again or even for the first time, following a low maintained finish. Just buy this stuff if you want a quick fix that seriously is “good enough” since it mutes the silvery tone made from exposed aluminum completely. If you want a brand new cerakote finish, maybe you should start with all of the other supplies to do the entire finish correctly, paired with the work and time to do it. But in my opinion? This stuff is magical. It doesn’t rub off when it’s done essentially corroding the surface layer of aluminum into black. Granted, it still can with abrasives; it most definitely is not as easy to rub off as when it was actively working. After that though, i would confidently state it’s about 80% as hard to scratch again as normal solid paint in a new spot. Highly, highly recommend.

Works as intended — Was cheaper here than local walmart.

This aluminum black finish works exactly as advertised. It dries quickly and provides a deep, uniform black coating that looks professional. Perfect for restoring scratched metal surfaces and touch-ups. The application is straightforward and coverage is excellent. A must-have for anyone working with aluminum or metal projects!

Even after following the instructions to the letter, the resulting finish can be easily scratched off by a fingernail. It looks good, but is unable to acheive a wear-resistant finish on 6061 or 7075 aluminum, even after thorough cleaning and deoxidation (for reference I have tried glass bead blasting, wire brushes, emery cloth, and scotchbrite). It also does not seem to be a great solution for blackening edges/corners, or a part with fine details or knurling. For purely decorative items or touching up scratches you don't mind reappearing, this is probably a fine product. For anything that is handled regularly or roughly, paying for anodizing is 100% worth the cost. Maybe I expect too much, but I feel this product overpromises and underdelivers.

Make aluminium go black. Good for dressing up some aluminium parts.

Excelente producto

Fast, but some previous work are needed. Not black and sturdy like anodizing, but to touch up some spots it's way good enough