Your logo is converted to clean vector paths and sized to the item's engraving window: flat art, mathematically wrapped to a curved surface.
Each piece locks into a jig (drinkware spins in a rotary attachment) and the beam is focused to about the width of a human hair.
The laser traces your logo, vaporizing coating or oxidizing the metal. Nothing is added to the product. The material itself changes color.
No ink, no cure time. Each piece gets wiped down and checked. The mark is permanent, dishwasher-safe, and physically can't rub off.
The mark color isn't ink. It's the material itself reacting. Pick a body and run the beam:
On powder-coated tumblers the laser reveals the silver steel underneath, so pick the drinkware color you love, and the logo color takes care of itself.