 She participated in the occupation of the Municipal Subway in protest of the appointment of representatives of the Municipal Salon of Plastic Arts, and in 1972 she participated in the reconstruction of Section 20 of the Communist Party in the Paso Molino neighborhood.In 1973, with the closure of official artistic training courses by the de facto government, López began to teach.Her workshop, as well as those of , Nelson Ramos, and , persevered in difficult times and were decisive in the formation of the next generation of Uruguayan artists, achieving the continuity of the national artistic process during the dictatorial period.