The major goals of this project involved: laboratory set-up; synthesis of Ca(OH) 2 nano- particles; cordage sample acquisition; development of a research design; preliminary testing of solutions and solvents; mechanical and aging studies; analytical characterization; imaging and data collection; and report preparation. The project has demonstrated that aqueous dispersions of calcium hydroxide nano-particles are not an appropriate treatment for archaeological cordage because the cordage swells when treated with water. The study has shown that 2-propanol as a carrier solvent for Calcium hydroxide nano-particles does not swell cordage fibers or inhibit the migration of nano-particles into the matrix, while increasing the pH of the cordage. The results of this funded project suggest that calcium hydroxide nano-particle solutions in isopropyl alcohol is promising as a conservation treatment for archaeological cordage. This study has also confirms that storage that offers the most confinement and immobilization will further reduce damage from handling.