SafeChoice X-158 is not a cleaning agent, but a clear, odorless defensive sealer designed to encapsulate surfaces which would typically be subject to mold and mildew attack. SafeChoice X-158 is ideal for unventilated, confined areas and corners such as those found in shower stalls and shower curtains, bathroom grout and saunas. X-158 is durable enough for outside surfaces including exterior walls, epoxy coatings, roofs, air filtration systems, concrete and spa decks. Each application lasts from 30 days to 6 months, depending on the severity of the conditions. Very easy to use, Safecoat X-158 can be sprayed, brushed or even applied with a clean, lint-free cloth. More Info