DAP Dynaflex Ultra Advanced Sealant for Window, Door, Siding & Trim applications is formulated with innovative Weather Max Technology to resist UV fading, chalking, crumbling, cracking and dirt build up. Resists moisture and weather so the sealant stays looking clean and new. Dynaflex Ultra has strong adhesion to common building materials and stays permanently flexible for a long-lasting, weatherproof seal that provides All Weather Protection and stands up to the elements. It is rain ready in two hours and paintable in one hour for better productivity. Waterproof sealant does not bubble, is low in odor and cleans up easily with water. DAP sealant guns out effortlessly and tools smoothly for easy application. Dynaflex Ultra meets ASTM C920, Class 25, is VOC compliant, and can be used on interior and exterior applications. DAP caulk and sealants provide durable performance for a variety of projects.