Oxidation Painting

Andy Warhol's Oxidation Painting (1978) is a radical example of his late Abstract series, characterized by its experimental use of chemical reactions. Warhol applied urine to canvases prepared with metallic paint, triggering oxidation and creating iridescent, textured stains that challenge traditional notions of painting. These works, sometimes called the "Piss" paintings, exemplify his exploration of unconventional materials and processes, aligning with Abstract expressionism principles of spontaneity and materiality. As a departure from his commercial imagery, the Oxidation Paintings represent his interest in organic, unpredictable forms, emphasizing process and chance in the creation of art.