Amazon.com: 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
New marking sprays for laser engraving metals, glass and ceramics.
Laser Etching: Everything You Need to Know - Laserax