Patination by blowtorch is a technique used to apply heat directly to the surface of a metal object, typically bronze or copper, to induce oxidation and create a unique patina. The blowtorch's flame causes the metal to react in the air, resulting in a range of colours and textures that can be manipulated by adjusting the intensity and duration of the heat application.
Artists use blowtorches to achieve various patina effects, from blues and greens to earthy browns and reds. The process requires skill and control, as excessive heat can damage the artwork or result in an undesirable burnt patina. Patination by blowtorch allows artists to add a personal touch to their sculptures and create distinct visual experiences making it a popular technique in metalworking art.