OMTech Laser Marking Spray, Metal Laser Marking Fluid for CO2 Laser Engravers, 2 13oz Aerosol High Contrast Spray for Black Laser Engraving Metal, Laser Ink Agent for Aluminum Stainless Steel Brass

Workes excellent on aluminum, copper, stainless steel, brass and even glass. I was using an xTool S1 40W laser and with a quick spray of metal or glass objects prior to engraving I received substantially better results that were darker and more permanent than without. The product easily washes off with water or damp towel.

Had a project I needed to use this for that required engraving a phone number on stainless steel - but did some other testing on more stainless steel items. This sprayed on very smooth and easily. However - word of caution - this product is like spray chalk. It will easily rub off so be careful handling it after it is sprayed on. Took about 5 minutes or so to fully dry and was ready for laser engraving. I set the 40 watt Epilog Mini laser with power at 100% and speed of 10%. The results speak for themselves. It is definitely permanent and shows no signs it will fail. Great product!

This works really well and is a fraction the cost of other options. I was able to get good marking on steel and stainless using my 5W diode laser at 100% and very low speed. It's a big enoug can that it'll last me a long time too. Fair warning - if you're not familiar with laser marking sprays this becomes like a powder when it dries and is easy to rub off until you engrave. Once engraved with the laser the mark is pretty permanent!

Good stuff. Works as advertized. Exceptionally easy to clean off after use- soap and water.

Works. You MUST find the settings to maximize your results to really enjoy this spray. If you read the it doesn't work. It's surely an user error, not a product defect. Give it a try.

I have a Elegoo 20W Diode laser and this product works perfect, even if it states for a CO2 laser. I slowed down my speed (1000) and kept the same power (70%). You can actually feel the engraving that it does, which is far different from the other laser spray that I had bought for about twice the price. I had to try a different brand because that other spray I had worked ok, but it rubbed off with little friction. This product is solid and works like it's supposed to. I would recommend this if you've tried other sprays. I don't usually write reviews but this product did what I needed and if you're having problems like I had, try this.

Worked great on my brass plate

I have had nothing but issues with this product. It marks the material just as stated there is no issue in that. However, EVERY single can I have ever purchased (5 over maybe 6 months) has stopped spraying material out of the can. I have followed all instructions, kept it in a warm place, even soaked the nozzle in alcohol after every use. No matter what I did I would get maybe 2/3 projects out of the can and that was it. It would not spray out any more product like it ran out of Aerosol. I even contacted Omtech and sent in my patch numbers from the bottom of the cans each and every time and was given the same response. "We had a bad batch and are aware of the issue." Was even sent 2 cans from Omtech and had the same issue over and over. I have given up and will NEVER purchase this again. Go with the Brilliance or XTool makes a spray now, I am going to try those but PLEASE save your money because this product is GARBAGE!