Abstract: This invention are directed to methods and compositions preferably comprising non-silicate metal oxides as a treatment for transparent electrically conductive carbon nanotube coatings that prevents resistance changes during exposure to environmental conditions; both chemical effects (for example, water, heat, light, or other compounds) and physical effects (for example, abrasion, scratch, adhesion). The protective properties instilled by these coatings occur preferably through the careful selection of the appropriate metal oxide depending on the application.