OMTech Metal Laser Marking Spray for CO2 Laser Engravers

Customizing bare metal with a CO2 laser machine can be tricky, and not every metal marking spray is equal. With the OMTech Metal Laser Marking Spray, you can expand your ability to customize and personalize bare metal products, making the creative possibilities endless. OMTech's innovative formula makes it easy to literally leave your mark by creating dark, high-contrast designs. In this blog post, we'll tell you all about using metal marking spray and show you how OMTech is a cut above the rest.

Check out how OMTech's affordable laser marking spray fairs compared to other brands such as Cermark, Molly Lube and LBT.

Why Do I Need OMTech Metal Laser Marking Spray?

While CO2 laser machines can mark directly on a variety of coated metal surfaces, bare metals reflect the CO2 laser's wavelength, so you have to pre-treat the surface with a metal marking spray. The heat of the laser bonds the metal marking spray to the metal, creating a raised mark. Since this process does not etch directly into the metal, it leaves the metal's structural integrity intact.

What Type of Laser Do I Need?

If you're using a laser marking spray, you'll need a CO2 laser engraver of at least 25 watts or above. Marking sprays aren’t really necessary if you are using a fiber laser marker as the optical beams from fiber lasers are strong enough to pierce through metal surfaces. If you have a low-wattage diode laser, you won't be able to get the results you're looking for, since lower wattages will result in smudging. Check your CO2 machine's wattage to ensure crisp, clean results.

What Kinds of Metal Can It Be Used On?

OMTech's Metal Laser Marking Spray can be used on a wide range of bare metals:

  • Tool steel, stainless steel, galvanized steel, and mild steel
  • Brass (and similar high heat conducting metals)
  • Aluminum
  • Iron
  • Copper (requires a clear coat finish for permanence)
  • Pewter
  • Titanium
  • Bronze
  • Hard anodized aluminum (soft anodized or painted aluminum will not work)
  • Plated steel (hard chrome, nickel, etc.)

However, it will not work well with gold, silver, or coated metals like trophy brass or regular anodized aluminum. OMTech's Metal Laser Marking Spray is also not recommended for use on painted or lacquered metals. Check your material to ensure success, and do a test batch — results can vary from laser to laser.

How Do I Use A Laser Marking Spray?

OMTech makes metal engraving quick and easy, and you don't need any special training to get started. Make sure your metal surface is clean and dry, shake the spray vigorously and apply the spray evenly across the material surface. OMTech's Metal Marking Spray features a clog-proof nozzle with a super fine spray, resulting in a smooth, thin coat.

Let it dry for about 5-10 minutes, and then use your laser (25W. min) to mark the metal right after it dries. OMTech's cadmium-free metal marking ink dries very quickly but if you're in a hurry, you can simply cut this drying time down to two minutes with a hair dryer. When you're done etching your metal, just rinse off the excess spray or give it a wipe down with a damp cloth, and your etched design is ready to use. 

That's it – just a few easy steps: clean, shake, spray, dry, engrave then rinse. 

What Can I Make With Metal Marking Spray?

With OMTech's Laser Marking Spray, you can customize any bare metal object. This means you can create custom jewelry, add serial numbers to your hardware or tools, design water bottles, and so much more. From boutiques to boardrooms — if you can imagine it, OMTech's Metal Marking Spray can help you achieve it.  

metal laser marking spray for CO2 laser engraver metal engraving, metal engraver

Why Choose the OMTech Metal Laser Marking Spray?

OMTech's Metal Marking Spray gives you consistent, reliable results, delivering high-contrast permanent black markings every time. You can use it on a wide variety of bare metals, making it very adaptable across your inventory. It's also competitively priced and a value-conscious choice. At 13 ounces, it's larger than other brands and covers up to 4,000 square inches of usage. 

It is simple and fast to use, thanks to OMTech's anti-clog, quick-dry technology. Unlike other metal marking sprays, OMTech's Metal Laser Marking Spray goes on finely and evenly every time, and excess product rinses off easily so you can see and use your incredible designs right away. It's super durable and won't corrode or tarnish so your designs will look good for years to come.  

OMTech metal laser marking spray for metal engravings and metal engraver with CO2 laser engraver

OMTech offers top-of-the-line lasers at the best value in the laser engraving machine industry, and its accessories are also top-notch. OMTech is always innovating and is currently expanding their product line to Fiber Laser Metal Cutters and Desktop sized CO2 engravers, so stay tuned to see how that product can help you up your game.

With its outstanding customer support and array of online resources, by choosing OMTech, you get a lifelong partner that is there for you every step of the way to help you bring your creative vision to life. 


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