What materials can be marked with dot peen systems? Dot peen marking is ideal for marking metals and other hard surfaces, including: Steel (carbon, stainless) Aluminium and alloys Brass, copper Cast iron Coated, galvanised or painted surfaces Some plastics and hard polymers By 188879pwpadmin|2025-06-25T15:35:59+00:00June 25, 2025|Dot Peen Marking Machines|Comments Off on What materials can be marked with dot peen systems?