This is an essay about rust. Iron usually plays the part of strength, stubbornness, and impenetrability, but rust registers the dimension of time in the material, reminding us that it always carries the potential for its own decomposition. While great expense is incurred to stave off iron’s oxidization, we read the uselessness that rust precipitates as an interruption of the instrumental logics that sustain racial capitalism. Looking to the rusted ring that became Elsa von Freytag-Loringhoven’sEnduring Ornament(1913), we consider how the discarded and defunctionalized lend themselves to ornamental redeployment. The essay then turns to works by the contemporary American artists David Hammons and Andrea Fraser, both of which transform Richard Serra’s rusty steel sculptures into a backdrop for fleeting gestures of impromptu reclamation. Attending to questions of susceptibility and monumental weathering, these reflections look to rusty leakages that play out the impossibility of refusing the environment. Rust, we suggest, is a material archive of exposure that does not keep itself, but flakes apart and seeps away.