The UV laser is one of those technologies that can engrave GLASS surfaces without breaking/fracture or overheat the glass.
UV laser are also perfect for plastics as : Polyethylene, Polypropylene, Polystyrene, Polycarbonate, Acrylic, Acetal, Nylon, ABS etc..
Metals : Aluminium, Gold, Platinum, Silver, Titanium, Brass, Stainless steel, Crome etc..
Wood : Mahogany, Walnut, Oak, Ash, Birch, Maple, Cherry, Pine, Spruce, Cedar, MDF, Plywood, Fibreboard etc..
Can engrave on most types of garments.