Paul Mayer tested several products that are marketed or reputed as products that are capable of marking on metal using a CO2 laser in this article.
Mark and Engrave Metals and More with Cermark by Johnson Plastics
RF Metal Tube CO2 Laser Marking Machine 30W for Wood Clothing Fabric Marking and Engraving - China Enclosed Cover Laser Marker, Laser Marking Machine
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
CO2 Laser Marking Machine For Non Metal Materials
Laser Marking vs. Engraving vs. Etching - Differences and Applications
BesCutter 3-axis 180W Galvo CO2 Laser Head Scanner/Marking Machine wit
How to Laser Engrave On Metal With A Co2 Laser, A Complete How to Guide
12 oz - BLI101 - Aerosol Black Laser Ink for Metals Marking - CO2 Laser - Fiber Laser - YAG, 100% Satisfaction Guarantee, Durable, Permanent, High Contrast, Brilliance Laser Inks
Marking on Metal with a CO2 Laser
Non-Metal CO2 Laser Marking Machine for Leather,Wood,Cloth
ComMarker CO2 Laser Marking Machine - ComMarker
China Customized CO2 Laser Marking Machine for Leather Manufacturers, Suppliers - Kelier