BRILLIANCE LASER INKS 12 Oz - BLI101 - Aerosol Black for Metals Marking - CO2 - Fiber - YAG, Durable, Permanent, High Contrast,

This is a must-have product if you are using a diode laser and want to engrave materials such as metal and glass that would normally be difficult or impossible to mark directly. The spray is easy to apply and produces sharp, high-contrast results that look very professional. It significantly expands the range of materials that can be engraved and opens up many new project possibilities. I have been very impressed with the results and now consider this an essential part of my laser engraving toolkit. If you want to get more capability out of your diode laser, this product is absolutely worth having on hand.

Works amazingly well - I’m using a 455nm 40W laser to mark copper. Without the paint, I couldn’t get anything but a faintly discernible mark after 5 passes at 1mm/sec, 100% power. Now getting superb marking at 100% power, 100mm/sec speed, off a single pass. Wish I’d discovered this earlier.

I did not expect these results. Just awesome. Technically I renewed (personalized) my tumbler. Shake well the can. Spray on the surface. Let it dry. (Do not touch it, it's like a powder). Laser engrave it. Wash with water. Ready! I liked this over a more expensive version as the plunger top is nicer and there is more information provided by this company... amazing customer service, they really went out of their way to help me get the right settings on my laser. Definitely will buy more!

This product is great. From personal experience it works great on aluminum if you add multiple thin layers drying them in between coatings. The more coatings the darker the engraving. For aluminum I use 100% power at 200mm/min on my 10W laser. The engraving initially leaves a white or grey residue embedded in the blackened material which can be removed by running the engraving under warm or hot water while gently rubbing the surface of the blackened engraving until it is not as rough. Since the powder seems to sublimate or deposit into the surface of the aluminum it may leave excess that makes it look light. You want to remove this excess material with the method suggested but you want to avoid scrubbing too vigorously so as to not remove the deposited material entirely exposing the bare aluminum below the engraving in small spots. Don't believe everything you read on the internet, especially when it comes to reading reviews; good products often get a bad rep because people simply haven't taken enough time to learn how to use them to their standards. Took me a while to get the results I was looking for but I sure got them. Practice makes perfect. 10/10.

Is expensive but don't use much product when lasering so would last for a fair while