Titebond Weathermaster 10 oz. Off-White Polymer Sealant is a premium-grade, superior polymer formula designed to provide adhesion to a variety of common building materials including wood, vinyl siding, masonry, PVC, and fiber-cement siding or trim. This versatile sealant is for outdoor use, making it i for sealing windows, doors, shutters, exterior trim, siding, gutters, and vents. It performs well even in low temperatures, remains permanently flexible, and resists cracking. The formula is UV-resistant, VOC-compliant, and will not shrink, while also adhering to wet or damp surfaces for reliable performance. For results, surfaces should be clean and of debris before application. The sealant can be extruded easily using a standard caulking gun, and cleanup is simple with acetone or isopropyl alcohol before it cures. Once dry, excess sealant can be trimmed away for a clean finish. Model Number: 45501