Birchwood CaseyFast-Drying Fast-Acting Aluminum Black Metal Finish Touch-Up Pen for Restoring Scratched and Marred Areas

I'm shocked. I had a small scratch on a Marfione custom knife. Pricey knife with a small scratch that was making me sad. I had tried the black marker trick with some success, but any time I cleaned the knife, or rubbed over the area with my thumb, the marker came off. It was strictly cosmetic and nothing more. After reading another reviewer on here had success on his Microtech knives, I decided to give Aluminum Black a shot. My process was a little different than the instructions, but it yielded amazing results:1. I first used painters tape to mask around the scratch so I could work and not worry about the surrounding areas. The scratch I was working on was right at the top most part of the knife, so I wrapped the surrounding areas.2. I applied rubbing alcohol on a cotton swab to prep and clean the area.3. I used an art-gum to gently remove oxidation from the scratch and brighten it up again. The instructions said use steel wool... I'd never. :p I've used art gums to gently clean electrical contacts on circuit boards in the past, and it did wonderful here.4. I cleaned the area again with rubbing alcohol on a cotton swab and dried the surface well5. I applied Aluminum Black... It did... a little something but not much. I had to fight with the surface to remain wet, so I gently just applied Aluminum Black from the pen tip over a 30 second period.7. I rinsed the area with a wet cotton swab8. The first application didn't do much. Nor did the second or third. Finally, around the fifth and sixth the area began to disappear.9. I noticed there was some extra blackening around the area I was working on, run off from the pen. I cleaned the knife, rubbed the entire surface I was treating with my thumb, and buffed the color out.10. The scratch was now almost completely gone. I decided to do another application, and then a final coat of Aluminum Black. This time I didn't worry about keeping the surface wet, I just let it sit for a minute, cleaned, buffed it with my thumb and repeated.11. The surface was perfect. I mean perfect. I couldn't for the life of me find the scratch after that last application. I buffed the area a little more with my thumb and then cleaned it with a wet cotton swap.12. I applied Rem Oil to the treated surface and let it soak in before buffing it dry.I'm blown away. I've scrutinized the area under bright direct lighting, natural lighting, and artificial lighting and the surface looks flawless. I am relatively confident that it will remain that way too. I buffed it well with my thumb and it's not budging, and this makes this otherwise perfect knife completely perfect again. If someone has a Microtech or Marfione knife that is scratched and you want to get it back to black, I honestly cannot recommend this stuff enough. Made a real believer out of me and I'll definitely be keeping Aluminum Black in my drawer for future repairs. Top stuff!

Works as described. I used it on my Holosun SCS and it blended right in. So then I used it on a lower receiver and had similar results. I think it works great on a matte black finish.Pen also came fresh, not dry.

Like how the other reviews have stated... It came dry and this item is non refundable due to being hazmat...

This works pretty well. You have to apply quite a bit of layers but over all works pretty well.

I scratched my gun changing the front sight out. This covered the scratches very well. very satisfied.

I was able to fix the minor scratches on my firearm with this maker.

Truth be told this product doesn't work very well on its own to mask scratches. While it certainly does help dull some of the marring that reveals the raw aluminum, it doesn't completely erase them like I had hoped. I've found that using a combination of both this product and the Black Overseas Paint Marker works the best to hide a scratch.What I do is I do a couple of passes following the instructions of the Birchwood Casey pen, looping back to the first step after applying the product and rinsing two or three times. Once the scratch stops fading and hits a stopping point in its improvement, I apply very small dabbles of the Overseas Black Paint on the scratch and rub it in with my finger. Then I reapply the Birchwood Casey product and rinse and repeat until I get the desired color. Once I get the color I like and everything dries, I apply a thin layer of oil like Balistol and let it cure overnight. Obviously your mileage may vary.I've successfully gotten rid of two scratches using this method, although it truly does suck how it takes so much extra effort it takes to get rid of a scratch rather than ideally using the product as instructed and be able to fix a scratch in one go. It takes a ton of extra work to get it perfect (as with anything frankly), but it is disappointing that the product hasn't worked as intended with either of my repairs.

The pen perfect matched my 2024 Midnight 15in MacBook Air and now it looks flawless. If it was a big scrape I don't think I would of went this route but since it was dot of paint missing the pen fixed it in 10 seconds like new now put a case on it.