No chemical or acid is used only laser beam applied heat directly to substrates to creating permanent marked. Depending what your requirement we can custom laser deep engraving, marking, etching, ablating or annealing. For detail and explanation type of laser engraving read more here. ABC Laser engraving does not only can laser engraving stainless steel panels, but we can laser engraving aluminum, copper, brass, titanium and more. We can custom Laser Engraving Stainless Steel Panels or many metals with text, logo, or both.