White Tub Seal Caulk 5 1/2 oz Fast drying, water-based acrylic caulk with silicone for added adhesion and low temperature flexibility. Provides a weather resistant seal against air, moisture, dirt, dust and insects. Adheres to brick, ceramic, vinyl, wood, glass, china, plaster, drywall and metal. Caulk around tubs, showers, enclosures, sinks, tile, walls, door mouldings and windows. Also use for resetting loose tile. Fills joints up to 3/8" wide x 3/8" deep. Non-flammable, formulated to last up to 35 years.