Frottage Technique In the early 1920s, in his pursuit of Surrealist ideas of automatism in art, he developed a technique called frottage (rubbing)- which involved placing
objects under a canvas layered in paint, and then scraping back the paint on the raised areas of the canvas.
«The process of making these is so slow and organic — like creating an aftermath or a debris field where you intuit, and sometimes actually make out, the lives of many generations of humans, alongside nonhuman traces, and
objects, all laid down
under pressure — which take time to make and are filled with that time, pieces of what might have been a larger
canvas of handiworks that reference entire lives, whole communities that are brought into the field of the painting, where the painting itself becomes another community,» described Sacks his painting method in a 2014 interview with Natasha Kurchanova published on Studio International.