The superior thermochemical stability and mechanical performance of thermoset polymers and their composites has facilitated widespread adoption of these materials in aerospace, automotive, marine, and energy sectors. The curing process of thermosets often requires heating the resin for several hours at elevated temperatures (ca. 180 °C) in large ovens or autoclaves, leading to high cost of manufacturing in terms of time, energy, and resources. We have recently demonstrated a novel curing strategy based on “frontal polymerization” (FP) to rapidly manufacture high-performance thermoset and composite parts with minimal energy input. FP is an exothermic reaction wave that provides the energy for materials synthesis, rather than requiring external energy. Applying a localized thermal stimulus on the reactive monomer solution triggers the polymerization, which proceeds in an autoactivating fashion without requiring any further external energy. Using this curing strategy, we can reduce the manufacturing energy of large parts by 10 orders of magnitude and manufacturing time by 2 orders of magnitude.