xTool Black Laser Marking Spray, 8.5 oz High Contrast Permanent Black Markings for CO2, Fiber, and Diode Laser Engravers

I own several xtool lasers (co2 and diode). I wanted to find a cheaper alternative to other marking sprays and was hopeful this marking spray would fit the bill at a lower price point. I’m happy to share that my initial tests have me pretty happy!I included a couple of photos for comparison. The stainless steel cup was engraved using a 55w co2 laser. The mark is solid, dark, and has a consistent look from different angles.The washers show a blue diode engraving on an unprepared surface. The settings were identical. The darker lettering and dragon were with the spray.The tag, which was a more complicated test was done using a sonogram on a stainless steel tag using a 10w diode. I did need to make two passes, which slowed things down a little, but it was still done in under 9 minutes with a 10w laser.All in all, I’m pretty happy. My only dislike is that the can built up a bit of back pressure. It may have been user error, as I hadn’t cleaned the nozzle. It’s become a bit clogged. On a new can I’ve been inverting and spraying out the extra like I do with the competitor can. So far it seems fine.

The first time I sprayed the material after shaking it for about 3 minutes it came out runny and inconsistent. I spoke with XTools via their support chat and they promised to get back to me and never did. Did another test shaking the tin for about 5 minutes. It came out more consistent but not uniform. I tested using glass and a sheet of stainless steel. Test pattern from 100-400 mm/min., 70 80% of a 2w 45 nm diode laser. No marks on stainless steel. On glass it was unsatisfactory. Mind you if it was a higher power diode, it might have worked? Anyways, although te Cermark is expensive, it came out pretty good on the glass at 80% power and 600mm/min. Next in line was the Rustoleum Heirloom satin but not as good as the Cermark. This is on glass. None worked on stainless steel. I’d say on glass use the Cermark if you have a 2w diode. and price your engraving accordingly.

Product arrived on time, Dec 10th 2024. Went to use product today, Jan 24th 2025, and the can is empty. It was a failure of the crimp around the top spray nozzle, and the charge leaked out. For $38, I expected better quality out of 8.5 oz, and a useable productUPDATED REVIEW:xTool customer service reached out to me about the issue. They offered to replace or refund the product. I chose to get a replacement, and it was shipped expeditiously to me. It is as described, and I am very pleased how fast xTool made it right. I will definitely buy xTool products again. Thank you so much for the great customer service. 5 STARS.

I experienced product issues and the customer support was wonderful.

This marking spray works well, I have only tried it a couple of times but it did as advertised and my project was a success! Clean up was easy as well.

I like the result the product produces, however, after the first use the propellant leaks out and I am not able to use the full contents. This is the second time I have tried it with the same results. The first time I thought it was a fluke. The second time shows there is a problem. Update. I was contacted by xtools and was offered instruction on how to avoid the blockage issue. This seemed to have cleared up the problem.

Not terribly impressed with this product. I have a 20w diode laser and chose this to try after reading the specifications. The site said that it would work with a 10W diode laser, so I gave it a chance. I followed all the instructions and coated a galvanized sheet with absolutely no results. At this price, I am going to keep trying different substrates and hope that it will work on something. But at this point, I am not feeling confident that it would be any better. If I find that it works with other materials, I may change up the review.

Only down side to this product is the cost but after you use it, you won't mind at all. I have helped my bottom line in my makers markets by planning what areas are to be marked then only covering them with just a light coat. Its easy to use more than is needed, so test and find the sweet spot for your needs then blow people away with your creativity and products!!Two Thumbs Up -- Strongly Recommend!