This premium, whole-house primer-sealer provides outstanding results, with low odor, as well as great flow and leveling. Water-based, acrylic primer delivers flexible use to stick to all surfaces without sanding whether you''re working indoors or outdoors. The durable formula resists mold and mildew and inhibits rust for results that last. Quick-drying design dries in just one hour to apply additional layers with a minimal wait time.