Use Tile Doctor Shield 72-36 on only clean, dry areas, articles and surfaces. Remove children and pets from areas to be treated, or areas where articles will be treated, until application is completely dry. Prior to application, test for staining and colorfastness by treating and drying a small, concealed portion of area/article/surface to be treated. For each application, determine optimum application and drying conditions, such as time and temperature, before use. If desired or necessary, reapply Tile Doctor Shield 72-36 if odor, staining and discoloration due to bacteria, mold or mildew occur.
Prepare aqueous solutions by adding Tile Doctor Shield 72-36 to water with stirring. Poor agitation when adding Tile Doctor Shield 72-36 to water can result in locally high concentrations which may form gel particles. Suggested starting level is 1 part of Tile Doctor Shield 72-36 to 3 parts of water. Treat surfaces with the aqueous solution by brushing, dipping, padding, soaking or spraying until adequately wet or apply by foaming techniques.
Dry the surface at temperatures from ambient to a maximum of 320ºF (160ºC) to effect complete condensation of silanol groups and to remove water, solvents and/or traces of methanol from hydrolysis. If necessary, reapply Tile Doctor Shield 72-36 every three months or when odor, staining and discoloration due to bacteria, mold and mildew return For Commercial Spray Equipment, including Electrostatic, and Pump Sprayer Application: Dilute 1 part of Tile Doctor Shield 72-36 to three parts of water. Spray entire surface at a distance of 4-6 inches from the surface making sure that the surface is completely covered, then let stand until dry or let stand 3 minutes and wipe dry with cloth or sponge. If spotting occurs, wipe with moist cloth or sponge. When treating coarser substrates, more Tile Doctor Shield 72-36 may be required due to absorption.