Numerous women artists engaged with industrial materials such as plastics in the 1960s and 1970s, contrary to what the discourse of the time would have us believe. As Feminist substances shows, their works offered unique approaches to plastics in art, introducing new material meanings through a feminist lens. With a focus on Europe and Latin America, the book discusses the practices of Carla Accardi, Lea Lublin and Alina Szapocznikow, combining close readings of selected artworks with broader considerations of their social contexts. It explores their use of Sicofoil, plexiglass, plastic inflatables, polyester resin and polyurethane foam to address key concerns of feminist thought in relation to social reproduction, motherhood, memory, desire and illness. Beyond commonplaces of plastics as generic bad materials, Feminist substances considers more complex ways of engaging with synthetic matter, taking into account our messy relationships with these controversial materials.